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Original & OEM Quality Parts

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1-1/2" Scoop Thru-Hull W/Nut - Sth-150-W - 34-Sth150Wf1

Groco
$129.29

Includes locking nut. NOT TO BE USED IN POTABLE WATER SYSTEMS.

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1-1/2" Thru-Hull With Nut - Th-150-W - 34-Th150Wf1

Groco
$95.66

Should have threaded portion cut to proper length considering hull and butt block thickness. Consider thread depth when using a seacock. Sealant is recommended between hull and thru-hull flange. Includes nut.NOT TO BE USED IN POTABLE WATER SYSTEMS.

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1-1/4" Bronze Full Flow In-Line Ball Valve - Ibv-1250 Bspp - 34-Ibv1250Bsppf1

Groco
$132.80

Patented field reversible handle allows you to select the closed position orientation (clockwise or counterclockwise) that best suits the installation. Handle has square hole to accept standard ratchet, to help reach valves in hard-to-reach locations and ease actuation of difficult to operate valves. 400 WOG rated. Stainless steel handle and hardware. Chrome plated solid brass ball (not a hollow ball). PTFE seats and seals. UL Listed for fuel or water.NOT TO BE USED IN POTABLE WATER SYSTEMS.

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1-1/4" Strainer 304 Ss Basket - Arg-1250-S Bspp - 34-Arg1250Sbsppf1

Groco
$627.37

Standard single strainers. No tie rods or leaks under pressure or vacuum. Quick and easy mounting system allowing removal of strainer without tools. #304 Stainless steel filter basket. O-ring seals at strainer cap and between strainer head and sight glass. See-thru screw-on strainer cap allows easy, no-tools maintenance. Spanner wrench holes in cover allow the use of SW-2531 wrench. Install with pipe or hose. Do not use chemical or abrasive cleaners on sight glass. NOT TO BE USED IN POTABLE WATER SYSTEMS.

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1-1/4" Thru-Hull With Nut - Th-125-W - 34-Th125Wf1

Groco
$74.09

Should have threaded portion cut to proper length considering hull and butt block thickness. Consider thread depth when using a seacock. Sealant is recommended between hull and thru-hull flange. Includes nut.NOT TO BE USED IN POTABLE WATER SYSTEMS.

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1" Bronze Full Flow In-Line Ball Valve - Ibv-1000 Bspp - 34-Ibv1000Bsppf1

Groco
$93.76

Patented field reversible handle allows you to select the closed position orientation (clockwise or counterclockwise) that best suits the installation. Handle has square hole to accept standard ratchet, to help reach valves in hard-to-reach locations and ease actuation of difficult to operate valves. 400 WOG rated. Stainless steel handle and hardware. Chrome plated solid brass ball (not a hollow ball). PTFE seats and seals. UL Listed for fuel or water.NOT TO BE USED IN POTABLE WATER SYSTEMS.

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1" Scoop Thru-Hull W/Nut - Sth-100-W - 34-Sth100Wf1

Groco
$80.84

Includes locking nut. NOT TO BE USED IN POTABLE WATER SYSTEMS.

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1" Strainer 304 Ss Basket - Arg-1000-S Bspp - 34-Arg1000Sbsppf1

Groco
$589.66

Standard single strainers. No tie rods or leaks under pressure or vacuum. Quick and easy mounting system allowing removal of strainer without tools. #304 Stainless steel filter basket. O-ring seals at strainer cap and between strainer head and sight glass. See-thru screw-on strainer cap allows easy, no-tools maintenance. Spanner wrench holes in cover allow the use of SW-2531 wrench. Install with pipe or hose. Do not use chemical or abrasive cleaners on sight glass. NOT TO BE USED IN POTABLE WATER SYSTEMS.

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1" Thru-Hull With Nut - Th-100-W - 34-Th100Wf1

Groco
$44.45

Should have threaded portion cut to proper length considering hull and butt block thickness. Consider thread depth when using a seacock. Sealant is recommended between hull and thru-hull flange. Includes nut.NOT TO BE USED IN POTABLE WATER SYSTEMS.

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2-1/2" Bronze Full Flow In-Line Ball Valve - Ibv-2500 Bspp - 34-Ibv2500Bsppf1

Groco
$611.79

Patented field reversible handle allows you to select the closed position orientation (clockwise or counterclockwise) that best suits the installation. Handle has square hole to accept standard ratchet, to help reach valves in hard-to-reach locations and ease actuation of difficult to operate valves. 400 WOG rated. Stainless steel handle and hardware. Chrome plated solid brass ball (not a hollow ball). PTFE seats and seals. UL Listed for fuel or water.NOT TO BE USED IN POTABLE WATER SYSTEMS.

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2" Bronze Full Flow In-Line Ball Valve - Ibv-2000 Bspp - 34-Ibv2000Bsppf1

Groco
$317.67

Patented field reversible handle allows you to select the closed position orientation (clockwise or counterclockwise) that best suits the installation. Handle has square hole to accept standard ratchet, to help reach valves in hard-to-reach locations and ease actuation of difficult to operate valves. 400 WOG rated. Stainless steel handle and hardware. Chrome plated solid brass ball (not a hollow ball). PTFE seats and seals. UL Listed for fuel or water.NOT TO BE USED IN POTABLE WATER SYSTEMS.

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2" Strainer 304 Ss Basket - Arg-2000-S Bspp - 34-Arg2000Sbsppf1

Groco
$1,004.81

Standard single strainers. No tie rods or leaks under pressure or vacuum. Quick and easy mounting system allowing removal of strainer without tools. #304 Stainless steel filter basket. O-ring seals at strainer cap and between strainer head and sight glass. See-thru screw-on strainer cap allows easy, no-tools maintenance. Spanner wrench holes in cover allow the use of SW-2531 wrench. Install with pipe or hose. Do not use chemical or abrasive cleaners on sight glass. NOT TO BE USED IN POTABLE WATER SYSTEMS.

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2" Thru-Hull With Nut - Th-200-W - 34-Th200Wf1

Groco
$144.20

Should have threaded portion cut to proper length considering hull and butt block thickness. Consider thread depth when using a seacock. Sealant is recommended between hull and thru-hull flange. Includes nut.NOT TO BE USED IN POTABLE WATER SYSTEMS.

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3/4" Bronze Full Flow In-Line Ball Valve - Ibv-750 Bspp - 34-Ibv750Bsppf1

Groco
$50.82

Patented field reversible handle allows you to select the closed position orientation (clockwise or counterclockwise) that best suits the installation. Handle has square hole to accept standard ratchet, to help reach valves in hard-to-reach locations and ease actuation of difficult to operate valves. 400 WOG rated. Stainless steel handle and hardware. Chrome plated solid brass ball (not a hollow ball). PTFE seats and seals. UL Listed for fuel or water.NOT TO BE USED IN POTABLE WATER SYSTEMS.

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3/4" Scoop Thru-Hull W/Nut - Sth-75-W - 34-Sth75Wf1

Groco
$59.27

Includes locking nut. NOT TO BE USED IN POTABLE WATER SYSTEMS.

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3/4" Thru-Hull With Nut - Th-75-W - 34-Th75Wf1

Groco
$31.06

Should have threaded portion cut to proper length considering hull and butt block thickness. Consider thread depth when using a seacock. Sealant is recommended between hull and thru-hull flange. Includes nut.NOT TO BE USED IN POTABLE WATER SYSTEMS.

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Groco #304 Stainless Steel Filter Basket - Bs-1 - 34-Bs1F1

Groco
$91.10

Spare Basket

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Groco #304 Stainless Steel Filter Basket - Bs-11 - 34-Bs11F1

Groco
$139.93

Spare Basket

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Groco #304 Stainless Steel Filter Basket - Bs-16 - 34-Bs16F1

Groco
$126.34

Spare Basket

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Groco #304 Stainless Steel Filter Basket - Bs-19 - 34-Bs19F1

Groco
$142.02

Spare Basket

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Groco #304 Stainless Steel Filter Basket - Bs-2 - 34-Bs2F1

Groco
$96.42

Spare Basket

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Groco #304 Stainless Steel Filter Basket - Bs-4 - 34-Bs4F1

Groco
$99.08

Spare Basket

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Groco #304 Stainless Steel Filter Basket - Bs-5 - 34-Bs5F1

Groco
$110.19

Spare Basket

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Groco #304 Stainless Steel Filter Basket - Bs-6 - 34-Bs6F1

Groco
$123.68

Spare Basket

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Groco #304 Stainless Steel Filter Basket - Bs-8 - 34-Bs8F1

Groco
$131.85

Spare Basket

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Groco 2157 Buna-N O-Ring - 2-157 - 34-2157F1

Groco
$3.98

Replacement Buna-N O-Ring for ARG Strainers.

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Groco 6-Port Fuel Valve 1/2" Supply - Fv-65038 - 34-Fv65038F1

Groco
$335.82

Six-port fuel valves are used where 2 tanks supply a single engine, and a return to each supply tank is required. ABYC H33.9.2 states that fuel system valves must have an independent means of support. That's why regular in-line valves are not appropriate for fuel systems applications. Provides flow to or from either of two connected tanks with its "L" shaped flow pattern and 180° handle actuation. NOT TO BE USED IN POTABLE WATER SYSTEMS.

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Groco 8Rset Replacement Sight Glass Gasket Set - #8R Set - 34-8Rsetf1

Groco
$26.02

Replacement sight glass gasket set

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Groco 970150012 Hydromatic Self Cleaning Sea Chest And Strainer, Ports: 1/1/2" Npt A:13.2 ,B: 6.9 ,C:7.6, Outlet: (1) 1/2". 2 3/4",(2) 1" - 970-1500-12 - 34-970150012F1

Groco
$6,094.05

30-second cleaning cycle is automatically performed at user-selected intervalsOptional interface with SSA system ( initiates cleaning cycle when flow is reduced, independent of the pre-set cleaning intervalThe "Purge" option over-rides the selected cleaning interval and performs a one-time 30-second cleaning cyclePowerful macerator grinds debris and discharges overboard below the waterline"Ignition Protected" motors for DC modelsInstallation can be horizontal or vertical (flooded inlet required)C84400 bronze construction

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Groco 9Rset Replacement Sight Glass Gasket Set - #9R Set - 34-9Rsetf1

Groco
$23.46

Replacement sight glass gasket set

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Groco Aphs12501 Aphs Series External Hull Strainer W/Access Door - Aphs-1250-1 - 34-Aphs12501F1

Groco
$285.18

The patented door provides access to the thru-hull fitting and seacock inlet beneath APHS hull strainers. There is no need to remove the entire strainer to clear nuisance marine growth. C84400 Bronze body and door#304 Stainless steel filter screen with .077" perforationsEasy field replaceable screenPressure relief holes in door castingNOT TO BE USED IN POTABLE WATER SYSTEMS

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Groco Aphs30001 Aphs Series External Hull Strainer W/Access Door - Aphs-3000-1 - 34-Aphs30001F1

Groco
$691.12

The patented door provides access to the thru-hull fitting and seacock inlet beneath APHS hull strainers. There is no need to remove the entire strainer to clear nuisance marine growth. C84400 Bronze body and door#304 Stainless steel filter screen with .077" perforationsEasy field replaceable screenPressure relief holes in door castingNOT TO BE USED IN POTABLE WATER SYSTEMS

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Groco Arg Bronze Strainer With Plastic Basket - Arg-1000-P - 34-Arg1000Pf1

Groco
$572.84

Standard single strainers. No tie rods or leaks under pressure or vacuum. Quick and easy mounting system allowing removal of strainer without tools. #304 Stainless steel filter basket. O-ring seals at strainer cap and between strainer head and sight glass. See-thru screw-on strainer cap allows easy, no-tools maintenance. Spanner wrench holes in cover allow the use of SW-2531 wrench. Install with pipe or hose. Do not use chemical or abrasive cleaners on sight glass.

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Groco Arg Bronze Strainer With Plastic Basket - Arg-1250-P - 34-Arg1250Pf1

Groco
$622.24

Standard single strainers. No tie rods or leaks under pressure or vacuum. Quick and easy mounting system allowing removal of strainer without tools. #304 Stainless steel filter basket. O-ring seals at strainer cap and between strainer head and sight glass. See-thru screw-on strainer cap allows easy, no-tools maintenance. Spanner wrench holes in cover allow the use of SW-2531 wrench. Install with pipe or hose. Do not use chemical or abrasive cleaners on sight glass. NOT TO BE USED IN POTABLE WATER SYSTEMS.

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Groco Arg Bronze Strainer With Plastic Basket - Arg-1500-P - 34-Arg1500Pf1

Groco
$935.84

Standard single strainers. No tie rods or leaks under pressure or vacuum. Quick and easy mounting system allowing removal of strainer without tools. #304 Stainless steel filter basket. O-ring seals at strainer cap and between strainer head and sight glass. See-thru screw-on strainer cap allows easy, no-tools maintenance. Spanner wrench holes in cover allow the use of SW-2531 wrench. Install with pipe or hose. Do not use chemical or abrasive cleaners on sight glass. NOT TO BE USED IN POTABLE WATER SYSTEMS.

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Groco Arg Bronze Strainer With Plastic Basket - Arg-2500-P - 34-Arg2500Pf1

Groco
$1,171.25

Standard single strainers. No tie rods or leaks under pressure or vacuum. Quick and easy mounting system allowing removal of strainer without tools. #304 Stainless steel filter basket. O-ring seals at strainer cap and between strainer head and sight glass. See-thru screw-on strainer cap allows easy, no-tools maintenance. Spanner wrench holes in cover allow the use of SW-2531 wrench. Install with pipe or hose. Do not use chemical or abrasive cleaners on sight glass. NOT TO BE USED IN POTABLE WATER SYSTEMS.

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Groco Arg Bronze Strainer With Plastic Basket - Arg-3000-P - 34-Arg3000Pf1

Groco
$1,318.31

Standard single strainers. No tie rods or leaks under pressure or vacuum. Quick and easy mounting system allowing removal of strainer without tools. #304 Stainless steel filter basket. O-ring seals at strainer cap and between strainer head and sight glass. See-thru screw-on strainer cap allows easy, no-tools maintenance. Spanner wrench holes in cover allow the use of SW-2531 wrench. Install with pipe or hose. Do not use chemical or abrasive cleaners on sight glass. NOT TO BE USED IN POTABLE WATER SYSTEMS.

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Groco Arg Bronze Strainer With Plastic Basket - Arg-500-P - 34-Arg500Pf1

Groco
$403.55

Standard single strainers. No tie rods or leaks under pressure or vacuum. Quick and easy mounting system allowing removal of strainer without tools. #304 Stainless steel filter basket. O-ring seals at strainer cap and between strainer head and sight glass. See-thru screw-on strainer cap allows easy, no-tools maintenance. Spanner wrench holes in cover allow the use of SW-2531 wrench. Install with pipe or hose. Do not use chemical or abrasive cleaners on sight glass. NOT TO BE USED IN POTABLE WATER SYSTEMS.

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Groco Arg Bronze Strainer With Plastic Basket - Arg-750-P - 34-Arg750Pf1

Groco
$414.10

Standard single strainers. No tie rods or leaks under pressure or vacuum. Quick and easy mounting system allowing removal of strainer without tools. #304 Stainless steel filter basket. O-ring seals at strainer cap and between strainer head and sight glass. See-thru screw-on strainer cap allows easy, no-tools maintenance. Spanner wrench holes in cover allow the use of SW-2531 wrench. Install with pipe or hose. Do not use chemical or abrasive cleaners on sight glass. NOT TO BE USED IN POTABLE WATER SYSTEMS.

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Groco Arg Bronze Strainer With Plastic Basket - Arg-755-P - 34-Arg755Pf1

Groco
$403.55

Standard single strainers. No tie rods or leaks under pressure or vacuum. Quick and easy mounting system allowing removal of strainer without tools. #304 Stainless steel filter basket. O-ring seals at strainer cap and between strainer head and sight glass. See-thru screw-on strainer cap allows easy, no-tools maintenance. Spanner wrench holes in cover allow the use of SW-2531 wrench. Install with pipe or hose. Do not use chemical or abrasive cleaners on sight glass. NOT TO BE USED IN POTABLE WATER SYSTEMS.

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Groco Arg Strainer Cap, 1-1/2" - Arg-1501-Pc - 34-Arg1501Pcf1

Groco
$64.02

PC non-meatallic strainer cap.

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Groco Arg Strainer Cap, 1" - Arg-1001-Pc - 34-Arg1001Pcf1

Groco
$55.76

PC non-meatallic strainer cap.

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Groco Arg Strainer Cap, 1/2" - Arg-501-Pc - 34-Arg501Pcf1

Groco
$38.28

PC non-meatallic strainer cap.

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Groco Arg-1 Strainer Service Kit For Arg-500, Arg-750 And Arg-755 - Arg-1 - 34-Arg1F1

Groco
$35.52

Service kits for ARG strainers. Contain cap O-Ring, sight glass O-Ring, washer and drain wingnut gasket.

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Groco Arg-2 Strainer Service Kit For Arg-1000, Arg-1210 And Arg-1250 - Arg-2 - 34-Arg2F1

Groco
$36.85

Service kits for ARG strainers. Contain cap O-Ring, sight glass O-Ring, washer and drain wingnut gasket.

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Groco Arg-506 Drain Wingnut And O-Ring For Arg Strainers Before 080101 - Arg-506 - 34-Arg506F1

Groco
$7.82

Drain Wingnut with O-Ring, Pre- 8/01

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Groco Arg1000S Bronze Strainer With #304 Ss Basket - Arg-1000-S - 34-Arg1000Sf1

Groco
$615.12

Standard single strainers. No tie rods or leaks under pressure or vacuum. Quick and easy mounting system allowing removal of strainer without tools. #304 Stainless steel filter basket. O-ring seals at strainer cap and between strainer head and sight glass. See-thru screw-on strainer cap allows easy, no-tools maintenance. Spanner wrench holes in cover allow the use of SW-2531 wrench. Install with pipe or hose. Do not use chemical or abrasive cleaners on sight glass. NOT TO BE USED IN POTABLE WATER SYSTEMS.

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Groco Arg1003 Sight Glass With Drain Plug For Arg Strainer - Arg-1003 - 34-Arg1003F1

Groco
$135.84

For the ARG series strainers. Maximum psi is 50. Maximum temperature is 225° F. Sight glass includes drain wingnut.

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Groco Arg1250S Bronze Strainer With #304 Ss Basket - Arg1250S - 34-Arg1250Sf1

Groco
$654.45

Standard single strainers. No tie rods or leaks under pressure or vacuum. Quick and easy mounting system allowing removal of strainer without tools. #304 Stainless steel filter basket. O-ring seals at strainer cap and between strainer head and sight glass. See-thru screw-on strainer cap allows easy, no-tools maintenance. Spanner wrench holes in cover allow the use of SW-2531 wrench. Install with pipe or hose. Do not use chemical or abrasive cleaners on sight glass. NOT TO BE USED IN POTABLE WATER SYSTEMS.

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Groco Arg1253 Sight Glass With Drain Plug For Arg Strainer - Arg-1253 - 34-Arg1253F1

Groco
$152.28

For the ARG series strainers. Maximum psi is 50. Maximum temperature is 225° F. Sight glass includes drain wingnut.

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Groco Arg1500S Bronze Strainer With #304 Ss Basket - Arg-1500-S - 34-Arg1500Sf1

Groco
$989.61

Standard single strainers. No tie rods or leaks under pressure or vacuum. Quick and easy mounting system allowing removal of strainer without tools. #304 Stainless steel filter basket. O-ring seals at strainer cap and between strainer head and sight glass. See-thru screw-on strainer cap allows easy, no-tools maintenance. Spanner wrench holes in cover allow the use of SW-2531 wrench. Install with pipe or hose. Do not use chemical or abrasive cleaners on sight glass. NOT TO BE USED IN POTABLE WATER SYSTEMS.

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Groco Arg1503 Sight Glass With Drain Plug For Arg Strainer - Arg-1503 - 34-Arg1503F1

Groco
$220.11

For the ARG series strainers. Maximum psi is 50. Maximum temperature is 225° F. Sight glass includes drain wingnut.

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Groco Arg2000S Bronze Strainer With #304 Ss Basket - Arg-2000-S - 34-Arg2000Sf1

Groco
$1,048.13

Standard single strainers. No tie rods or leaks under pressure or vacuum. Quick and easy mounting system allowing removal of strainer without tools. #304 Stainless steel filter basket. O-ring seals at strainer cap and between strainer head and sight glass. See-thru screw-on strainer cap allows easy, no-tools maintenance. Spanner wrench holes in cover allow the use of SW-2531 wrench. Install with pipe or hose. Do not use chemical or abrasive cleaners on sight glass. NOT TO BE USED IN POTABLE WATER SYSTEMS.

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Groco Arg2500S Bronze Strainer With #304 Ss Basket - Arg-2500-S - 34-Arg2500Sf1

Groco
$1,220.46

Standard single strainers. No tie rods or leaks under pressure or vacuum. Quick and easy mounting system allowing removal of strainer without tools. #304 Stainless steel filter basket. O-ring seals at strainer cap and between strainer head and sight glass. See-thru screw-on strainer cap allows easy, no-tools maintenance. Spanner wrench holes in cover allow the use of SW-2531 wrench. Install with pipe or hose. Do not use chemical or abrasive cleaners on sight glass. NOT TO BE USED IN POTABLE WATER SYSTEMS.

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Groco Arg3000S Bronze Strainer With #304 Ss Basket - Arg-3000-S - 34-Arg3000Sf1

Groco
$1,306.62

Standard single strainers. No tie rods or leaks under pressure or vacuum. Quick and easy mounting system allowing removal of strainer without tools. #304 Stainless steel filter basket. O-ring seals at strainer cap and between strainer head and sight glass. See-thru screw-on strainer cap allows easy, no-tools maintenance. Spanner wrench holes in cover allow the use of SW-2531 wrench. Install with pipe or hose. Do not use chemical or abrasive cleaners on sight glass. NOT TO BE USED IN POTABLE WATER SYSTEMS.

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Groco Arg500S Bronze Strainer With #304 Ss Basket - Arg500S - 34-Arg500Sf1

Groco
$426.35

Standard single strainers. No tie rods or leaks under pressure or vacuum. Quick and easy mounting system allowing removal of strainer without tools. #304 Stainless steel filter basket. O-ring seals at strainer cap and between strainer head and sight glass. See-thru screw-on strainer cap allows easy, no-tools maintenance. Spanner wrench holes in cover allow the use of SW-2531 wrench. Install with pipe or hose. Do not use chemical or abrasive cleaners on sight glass. NOT TO BE USED IN POTABLE WATER SYSTEMS.

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Groco Arg503 Sight Glass With Drain Plug For Arg Strainer - Arg-503 - 34-Arg503F1

Groco
$92.33

For the ARG series strainers. Maximum psi is 50. Maximum temperature is 225° F. Sight glass includes drain wingnut.

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Groco Arg750S Bronze Strainer With #304 Ss Basket - Arg-750-S - 34-Arg750Sf1

Groco
$438.70

Standard single strainers. No tie rods or leaks under pressure or vacuum. Quick and easy mounting system allowing removal of strainer without tools. #304 Stainless steel filter basket. O-ring seals at strainer cap and between strainer head and sight glass. See-thru screw-on strainer cap allows easy, no-tools maintenance. Spanner wrench holes in cover allow the use of SW-2531 wrench. Install with pipe or hose. Do not use chemical or abrasive cleaners on sight glass. NOT TO BE USED IN POTABLE WATER SYSTEMS.

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Groco Arg753 Sight Glass With Drain Plug For Arg Strainer - Arg-753 - 34-Arg753F1

Groco
$107.34

For the ARG series strainers. Maximum psi is 50. Maximum temperature is 225° F. Sight glass includes drain wingnut.

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Groco As-100 Bilge Pump Switch - As-100 - 34-As100F1

Groco
$212.32

AS-100 uses the simple and reliable pressure fluctuation from a rising or falling bilge water level to turn your bilge pump on and off automatically. No floats to stick or fill with water. Approximate levels are on at 2-3/4" of bilge level and off at 1". Use with a pump that draws up to 10-amps running continuously or up to 20 amps running intermittently. NOT TO BE USED IN POTABLE WATER SYSTEMS.

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Groco Asc1250 Bronze Slotted Hull Strainer With Access - Asc-1250 - 34-Asc1250F1

Groco
$260.39

Access to the thru-hull fitting and seacock beneath the hull strainer is made easy with the patented access door design. No need to remove the entire strainer to clear debris or marine growth. Uses #10 fasteners. NOT TO BE USED IN POTABLE WATER SYSTEMS.

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Groco Asc2000 Bronze Slotted Hull Strainer With Access - Asc-2000 - 34-Asc2000F1

Groco
$351.49

Access to the thru-hull fitting and seacock beneath the hull strainer is made easy with the patented access door design. No need to remove the entire strainer to clear debris or marine growth. Uses #10 fasteners. NOT TO BE USED IN POTABLE WATER SYSTEMS.

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Groco Bb Backing Block For Flanged Seacock - Bb-1 - 34-Bb1F1

Groco
$95.09

Flanged seacock installation is improved with the use of a backing block between the valve flange and the hull. Each size fits multiple seacock sizesPress threaded inserts into the hull side of the backing block into the holes that match the seacock flange1/2" thickness is rigid enough for a secure installation but flexible enough to conform to minor hull curvatureWill not swell or absorb moistureMade from an environmentally friendly PVC foam specially formulated for marine applications

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Groco Bb Backing Block For Flanged Seacock - Bb-2 - 34-Bb2F1

Groco
$121.02

Flanged seacock installation is improved with the use of a backing block between the valve flange and the hull. Each size fits multiple seacock sizesPress threaded inserts into the hull side of the backing block into the holes that match the seacock flange1/2" thickness is rigid enough for a secure installation but flexible enough to conform to minor hull curvatureWill not swell or absorb moistureMade from an environmentally friendly PVC foam specially formulated for marine applications

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Groco Bb Backing Block For Flanged Seacock - Bb-3 - 34-Bb3F1

Groco
$141.26

Flanged seacock installation is improved with the use of a backing block between the valve flange and the hull. Each size fits multiple seacock sizesPress threaded inserts into the hull side of the backing block into the holes that match the seacock flange1/2" thickness is rigid enough for a secure installation but flexible enough to conform to minor hull curvatureWill not swell or absorb moistureMade from an environmentally friendly PVC foam specially formulated for marine applications

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Groco Bm11 Monel Filter Basket - Bm-11 - 34-Bm11F1

Groco
$531.33

Spare Basket

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Groco Bm2 Monel Filter Basket - Bm-2 - 34-Bm2F1

Groco
$221.34

Spare Basket

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Groco Bm3 Monel Filter Basket - Bm-3 - 34-Bm3F1

Groco
$269.51

Spare Basket

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Groco Bm5 Monel Filter Basket - Bm-5 - 34-Bm5F1

Groco
$343.61

Spare Basket

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Groco Bv Bronze Full-Flow Flanged Ball-Type Seacock - Bv-1000 - 34-Bv1000F1

Groco
$567.62

Features patented field-selectable and changeable direction of rotation-permits installation in otherwise unusable locations. Tri-flange base and mount hole pattern provide easy retrofit when replacing most popular brands. Handle has a square hole that accepts standard ratchet-helps to reach hard-to-reach valves, and eases operation of hard to actuate valves. Stainless steel ball and stem, PTFE seats and seals. Serviceable when installed, drain plug on both sides for efficient winterization. NOT TO BE USED IN POTABLE WATER SYSTEMS.

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Groco Bv Bronze Full-Flow Flanged Ball-Type Seacock - Bv-1250 - 34-Bv1250F1

Groco
$729.21

Features patented field-selectable and changeable direction of rotation-permits installation in otherwise unusable locations. Tri-flange base and mount hole pattern provide easy retrofit when replacing most popular brands. Handle has a square hole that accepts standard ratchet-helps to reach hard-to-reach valves, and eases operation of hard to actuate valves. Stainless steel ball and stem, PTFE seats and seals. Serviceable when installed, drain plug on both sides for efficient winterization. NOT TO BE USED IN POTABLE WATER SYSTEMS.

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Groco Bv Bronze Full-Flow Flanged Ball-Type Seacock - Bv-1500 - 34-Bv1500F1

Groco
$822.69

Features patented field-selectable and changeable direction of rotation-permits installation in otherwise unusable locations. Tri-flange base and mount hole pattern provide easy retrofit when replacing most popular brands. Handle has a square hole that accepts standard ratchet-helps to reach hard-to-reach valves, and eases operation of hard to actuate valves. Stainless steel ball and stem, PTFE seats and seals. Serviceable when installed, drain plug on both sides for efficient winterization. NOT TO BE USED IN POTABLE WATER SYSTEMS.

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Groco Bv Bronze Full-Flow Flanged Ball-Type Seacock - Bv-2000 - 34-Bv2000F1

Groco
$1,156.62

Features patented field-selectable and changeable direction of rotation-permits installation in otherwise unusable locations. Tri-flange base and mount hole pattern provide easy retrofit when replacing most popular brands. Handle has a square hole that accepts standard ratchet-helps to reach hard-to-reach valves, and eases operation of hard to actuate valves. Stainless steel ball and stem, PTFE seats and seals. Serviceable when installed, drain plug on both sides for efficient winterization. NOT TO BE USED IN POTABLE WATER SYSTEMS.

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Groco Bv Bronze Full-Flow Flanged Ball-Type Seacock - Bv-2500 - 34-Bv2500F1

Groco
$1,846.79

Features patented field-selectable and changeable direction of rotation-permits installation in otherwise unusable locations. Tri-flange base and mount hole pattern provide easy retrofit when replacing most popular brands. Handle has a square hole that accepts standard ratchet-helps to reach hard-to-reach valves, and eases operation of hard to actuate valves. Stainless steel ball and stem, PTFE seats and seals. Serviceable when installed, drain plug on both sides for efficient winterization. NOT TO BE USED IN POTABLE WATER SYSTEMS.

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Groco Bv Bronze Full-Flow Flanged Ball-Type Seacock - Bv-3000 - 34-Bv3000F1

Groco
$2,880.11

Features patented field-selectable and changeable direction of rotation-permits installation in otherwise unusable locations. Tri-flange base and mount hole pattern provide easy retrofit when replacing most popular brands. Handle has a square hole that accepts standard ratchet-helps to reach hard-to-reach valves, and eases operation of hard to actuate valves. Stainless steel ball and stem, PTFE seats and seals. Serviceable when installed, drain plug on both sides for efficient winterization. NOT TO BE USED IN POTABLE WATER SYSTEMS.

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Groco Bv Bronze Full-Flow Flanged Ball-Type Seacock - Bv-4000 - 34-Bv4000F1

Groco
$6,101.65

Features patented field-selectable and changeable direction of rotation-permits installation in otherwise unusable locations. Tri-flange base and mount hole pattern provide easy retrofit when replacing most popular brands. Handle has a square hole that accepts standard ratchet-helps to reach hard-to-reach valves, and eases operation of hard to actuate valves. Stainless steel ball and stem, PTFE seats and seals. Serviceable when installed, drain plug on both sides for efficient winterization. NOT TO BE USED IN POTABLE WATER SYSTEMS.

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Northern Marine Canada
Our products are shipped from Canada!
Parts Warehouse:
Toronto, Ontario, Canada
Head Office:
Kingston, Ontario

About Us

Northern Marine is a Canadian supplier of OEM and premium aftermarket marine and RV parts and accessories. We focus on quality, accurate listings, and dependable fulfillment so you can maintain, repair, and outfit your boat or RV with confidence.

Our goal is simple: get you the right parts, shipped fast, with straightforward service you can count on.