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Premium Marine Quality Parts

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T-M Marine 90-Degree Cockpit Scupper Drain - White

Accessories, Thru-Hull Fittings, T-H Marine Supplies
$90.57
90-Degree Cockpit Scupper Drain - White This cockpit scupper drain is an affordable and durable solution for draining areas below the waterline. Made from high-strength, UV-stabilized polymer, it feat... More Details

1-1/2" Duplex Stainless Steel 90 Degree Thru-Hull Fitting Specifications: Hose Size: 1-1/2" Dimensions: Flange O.D.: 2-3/8" Thread Length: 1-5/8" Barb Length: 1-1/2" Overall Length: 4" Cut Out: 1-1/2"... More Details

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Sea-Dog Thru-Hull w/Scupper Valve - Injection Molded Acetel

Accessories, Thru-Hull Fittings, Sea-Dog
$29.40
Thru-Hull with Scupper Valve - Injection Molded Acetel This Thru-Hull Scupper Valve mounts through the transom and provides a water exit for boats with self-bailing cockpits. Ideal for above the water... More Details

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Perko Thru-Hull Scupper f/Mounting Through Transom

Thru-Hull Fittings, Perko
$83.53
Thru-Hull Scupper for Mounting Through Transom Features: Molded White Polymer Soft Black Flapper Nut and Mounting Hardware Included Specifications: Hose Size: 1-1/2" Mounting Hole Diameter: 1-7/8" Max... More Details

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Perko 8" x 5-1/8" Scoop Strainer Bronze MADE IN THE USA

Thru-Hull Fittings, Perko
$158.53
Perko 8" x 5-1/8" Scoop Strainer Bronze Cast bronze Machine slots Technical Information: For Thru-Hull Size Inches: 3/8 & 1/2 Dimensions Strainer Inches: 3-1/2 X 2-1/2 Model Number: 0066DP1PLB Ship We... More Details

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Perko 6-1/4" x 4-1/4" Scoop Strainer Bronze MADE IN THE USA

Thru-Hull Fittings, Perko
$114.76
6-1/4" X 4-1/4" Scoop Strainer Bronze Features: Cast bronze Machine slots Technical Information: For Thru-Hull Size Inches: 1-1/4 & 1-1/2 Dimensions Strainer Inches: 6-1/4 X 4-1/4 Model Number: 0066DP... More Details

Perko 5/8" Thru-Hull Fitting f/ Hose Plastic Molded White Plastic Broad Flange Technical Information: Hose Size Inches: 5/8 Mounting Hole Diameter Inches: 13/16 Maximum Hull Thickness Inches: 1-1/4 O.... More Details

Perko 5/8" Thru-Hull Connection f/ use with Hose Chrome Plated Bronze Flange is machined to fit and grooved to retain bedding compound neck is threaded to approximately 3/16 inch from flange. Cast bro... More Details

Perko 5/8" Thru-Hull Connection f/ use with Hose Bronze Flange is machined to fit and grooved to retain bedding compound neck is threaded to approximately 3/16 inch from flange. Cast bronze, plain or ... More Details

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Perko 5" x 3-1/4" Scoop Strainer Bronze MADE IN THE USA

Thru-Hull Fittings, Perko
$86.40
Perko 5" X 3-1/4" Scoop Strainer Bronze Cast bronze Machine slots Technical Information: For Thru-Hull Size Inches: 3/4 & 1 Dimensions Strainer Inches: 5 X 3-1/4 Model Number: 0066DP2PLB Ship Weight: ... More Details

Perko 3/4" Thru-Hull Fitting w/ Pipe Thread Bronze Flange is machined to fit hull and grooved to retain bedding compound. Neck is threaded to approximately 3/8 inch from flange. Cast bronze. Technical... More Details

Extra Long Thru-Hull Connection for Use with Pipe Part #: 0348DP5PLB Flange is machined to fit the hull and grooved to retain bedding compound neck is threaded to approximately 3/8 inch from flange. M... More Details

3/4" Thru-Hull Fitting f/Hose - Plastic Narrow Flange Features: Molded white Narrow Flange Specifications: Hose Size: 3/4" Mounting Hole Diameter: 1" Max. Hull Thickness: 1-7/16" O.D. Flange: 1-1/2" A... More Details

Perko 3/4" Thru-Hull Fitting f/ Hose Plastic Molded White Plastic Broad Flange Technical Information: Hose Size Inches: 3/4 Mounting Hole Diameter Inches: 1 Maximum Hull Thickness Inches: 1-7/16 O.D. ... More Details

Perko 3/4" Thru-Hull Connection f/ use with Hose Chrome Plated Bronze Flange is machined to fit and grooved to retain bedding compound neck is threaded to approximately 3/16 inch from flange. Cast bro... More Details

Perko 3/4" Thru-Hull Connection f/ use with Hose Bronze Flange is machined to fit and grooved to retain bedding compound neck is threaded to approximately 3/16 inch from flange. Cast bronze, plain or ... More Details

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Perko 3/4" Intake Strainer Bronze MADE IN THE USA

Thru-Hull Fittings, Perko
$152.39
Perko 3/4" Intake Strainer Bronze Cast bronze Machined Slots Technical Information: Maximum Pipe Size Inches: 3/4 Maximum Hull Thickness Inches: 2-3/16 Dimensions Strainer Inches: 3 x 4 Model Number: ... More Details

Perko 3-1/2" X 2-1/2" Scoop Strainer Bronze Cast bronze Machine slots Technical Information: For Thru-Hull Size Inches: 3/8 & 1/2 Dimensions Strainer Inches: 3-1/2 x 2-1/2 Model Number: 0066DP1PLB Shi... More Details

Perko 2" Thru-Hull Fitting w/ Pipe Thread Bronze Flange is machined to fit hull and grooved to retain bedding compound. Neck is threaded to approximately 3/8 inch from flange. Cast Bronze. Technical I... More Details

Perko 1/2" Thru-Hull Fitting w/ Pipe Thread Bronze Flange is machined to fit hull and grooved to retain bedding compound. Neck is threaded to approximately 3/8 inch from flange. Cast bronze. Technical... More Details

Perko 1/2" Thru-Hull Fitting f/ Hose Plastic Molded White Plastic Broad Flange Technical Information: Hose Size Inches: 1/2 Mounting Hole Diameter Inches: 13/16 Maximum Hull Thickness Inches: 1-1/4 O.... More Details

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Perko 1/2" Intake Strainer Bronze MADE IN THE USA

Thru-Hull Fittings, Perko
$117.66
Perko 1/2" Intake Strainer Bronze Cast bronze Machined Slots Technical Information: Maximum Pipe Size Inches: 1/2 Maximum Hull Thickness Inches: 2-1/4 Dimensions Strainer Inches: 3 x 4 Model Number: 0... More Details

Perko 1" Thru-Hull Fitting w/ Pipe Thread Bronze Flange is machined to fit hull and grooved to retain bedding compound. Neck is threaded to approximately 3/8 inch from flange. Cast bronze. Technical I... More Details

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Perko 1" Thru-Hull Fitting f/Hose Bronze MADE IN THE USA

Thru-Hull Fittings, Perko
$122.43
Perko 1" Thru-Hull Connection f/ use with Hose Bronze Flange is machined to fit and grooved to retain bedding compound neck is threaded to approximately 3/16 inch from flange. Cast bronze, plain or ch... More Details

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Perko 1" Thru-Hull Fitting f/ Hose Plastic MADE IN THE USA

Thru-Hull Fittings, Perko
$22.50
Perko 1" Thru-Hull Fitting f/ Hose Plastic Molded White Plastic Broad Flange Technical Information: Hose Size Inches: 1 Mounting Hole Diameter Inches: 1-1-5/16 Maximum Hull Thickness Inches: 1-1/2 O.D... More Details

Perko 1" Thru-Hull Connection f/ use with Hose Chrome Plated Bronze Flange is machined to fit and grooved to retain bedding compound neck is threaded to approximately 3/16 inch from flange. Cast bronz... More Details

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Perko 1" Intake Strainer Bronze MADE IN THE USA

Thru-Hull Fittings, Perko
$196.35
Perko 1" Intake Strainer Bronze Cast bronze Machined Slots Technical Information: Maximum Pipe Size Inches: 1 Maximum Hull Thickness Inches: 2-1/2 Dimensions Strainer Inches: 3 x 4 Model Number: 0065D... More Details

1-1/8" Thru-Hull Fitting for Hose Narrow Flange - Plastic Features: Molded white Narrow Flange Specifications: Hose Size: 1-1/8" Mounting Hole Diameter: 1-5/16" Max. Hull Thickness: 1-1/2" O.D. Flange... More Details

Perko 1-⅛" Thru-Hull Fitting f/ Hose Plastic Molded White Plastic Broad Flange Technical Information: Hose Size Inches: 1-1/8 Mounting Hole Diameter Inches: 1-1/2 Maximum Hull Thickness Inches: 1-1/2 ... More Details

Perko 1-1/8" Thru-Hull Connection f/ use with Hose Chrome Plated Bronze Flange is machined to fit and grooved to retain bedding compound neck is threaded to approximately 3/16 inch from flange. Cast b... More Details

Perko 1-1/8" Thru-Hull Connection f/ use with Hose Bronze Flange is machined to fit and grooved to retain bedding compound neck is threaded to approximately 3/16 inch from flange. Cast bronze, plain o... More Details

Perko 1-1/4" Thru-Hull Fitting w/ Pipe Thread Bronze Flange is machined to fit hull and grooved to retain bedding compound. Neck is threaded to approximately 3/8 inch from flange. Cast bronze. Technic... More Details

Perko 1-1/4" Thru-Hull Connection f/ use with Hose Bronze Flange is machined to fit and grooved to retain bedding compound neck is threaded to approximately 3/16 inch from flange. Cast bronze, plain o... More Details

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Perko 1-1/4" Intake Strainer Bronze MADE IN THE USA

Thru-Hull Fittings, Perko
$252.63
Perko 1-1/4" Intake Strainer Bronze Cast bronze Machined Slots Technical Information: Maximum Pipe Size Inches: 1-1/4 Maximum Hull Thickness Inches: 3 Dimensions Strainer Inches: 3-1/4 x 4-1/4 Model N... More Details

Perko 1-1/2" Thru-Hull Fitting w/ Pipe Thread Bronze Flange is machined to fit hull and grooved to retain bedding compound. Neck is threaded to approximately 3/8 inch from flange. Cast bronze. Technic... More Details

Perko 1-1/2" Thru-Hull Fitting for Hose Plastic Molded White Plastic Broad Flange Technical Information: Hose Size Inches: 1-1/2 Mounting Hole Diameter Inches: 1-7/8 Maximum Hull Thickness Inches: 1-7... More Details

Perko 1-1/2" Thru-Hull Connection f/ use with Hose Chrome Plated Bronze Flange is machined to fit and grooved to retain bedding compound neck is threaded to approximately 3/16 inch from flange. Cast b... More Details

Perko 1-1/2" Thru-Hull Connection f/ use with Hose Bronze Flange is machined to fit and grooved to retain bedding compound neck is threaded to approximately 3/16 inch from flange. Cast bronze, plain o... More Details

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Johnson Pump Thru-Hull - 1-1/2" - White

Thru-Hull Fittings, Johnson Pump
$22.94
Thru-Hull - 1-1/2" - White Thru-Hull assembly, 1-1/2", White More Details

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GROCO Stainless Steel Hose Barb Thru-Hull Fitting - 5/8"

Thru-Hull Fittings, GROCO
$47.26
Stainless Steel Hose Barb Thru-Hull Fitting - 5/8"  Features: NPS Thread With Hose Connection #316 Stainless Steel UL Listed 647B Accessories SKU 67311 — MFG# 90919 SKU 67312 — MFG# 90923 SKU 67313 — ... More Details

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GROCO Stainless Steel Hose Barb Thru-Hull Fitting - 3/4"

Thru-Hull Fittings, GROCO
$47.26
Stainless Steel Hose Barb Thru-Hull Fitting - 3/4"  Features: NPS Thread With Hose Connection #316 Stainless Steel UL Listed 647B Accessories SKU 67311 — MFG# 90919 SKU 67312 — MFG# 90923 SKU 67313 — ... More Details

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GROCO Stainless Steel Hose Barb Thru-Hull Fitting - 2"

Thru-Hull Fittings, GROCO
$144.56
Stainless Steel Hose Barb Thru-Hull Fitting - 2"  Features: NPS Thread With Hose Connection #316 Stainless Steel UL Listed 647B Accessories SKU 67311 — MFG# 90919 SKU 67312 — MFG# 90923 SKU 67313 — MF... More Details

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GROCO Stainless Steel Hose Barb Thru-Hull Fitting - 1/2"

Thru-Hull Fittings, GROCO
$55.60
Stainless Steel Hose Barb Thru-Hull Fitting - 1/2"  Features: NPS Thread With Hose Connection #316 Stainless Steel UL Listed 647B Accessories SKU 67311 — MFG# 90919 SKU 67312 — MFG# 90923 SKU 67313 — ... More Details

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GROCO Stainless Steel Hose Barb Thru-Hull Fitting - 1"

Thru-Hull Fittings, GROCO
$56.99
Stainless Steel Hose Barb Thru-Hull Fitting - 1"  Features: NPS Thread With Hose Connection #316 Stainless Steel UL Listed 647B Accessories SKU 67311 — MFG# 90919 SKU 67312 — MFG# 90923 SKU 67313 — MF... More Details

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GROCO Stainless Steel Hose Barb Thru-Hull Fitting - 1-1/8"

Thru-Hull Fittings, GROCO
$59.77
Stainless Steel Hose Barb Thru-Hull Fitting - 1-1/8"  Features: NPS Thread With Hose Connection #316 Stainless Steel UL Listed 647B Accessories SKU 67311 — MFG# 90919 SKU 67312 — MFG# 90923 SKU 67313 ... More Details

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GROCO Stainless Steel Hose Barb Thru-Hull Fitting - 1-1/4"

Thru-Hull Fittings, GROCO
$95.91
Stainless Steel Hose Barb Thru-Hull Fitting - 1-1/4"  Features: NPS Thread With Hose Connection #316 Stainless Steel UL Listed 647B Accessories SKU 67311 — MFG# 90919 SKU 67312 — MFG# 90923 SKU 67313 ... More Details

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GROCO Stainless Steel Hose Barb Thru-Hull Fitting - 1-1/2"

Thru-Hull Fittings, GROCO
$118.15
Stainless Steel Hose Barb Thru-Hull Fitting - 1-1/2"  Features: NPS Thread With Hose Connection #316 Stainless Steel UL Listed 647B Accessories SKU 67311 — MFG# 90919 SKU 67312 — MFG# 90923 SKU 67313 ... More Details

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GROCO Bronze Hose Barb Thru-Hull Fitting - 5/8"

Thru-Hull Fittings, GROCO
$38.92
Bronze Hose Barb Thru-Hull Fitting - 5/8"  Features: NPS Thread With Hose Connection C83600 Bronze UL Listed 647B Accessories SKU 67311 — MFG# 90919 SKU 67312 — MFG# 90923 SKU 67313 — MFG# 90925 SKU 6... More Details

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GROCO Bronze Hose Barb Thru-Hull Fitting - 3/4"

Thru-Hull Fittings, GROCO
$45.87
Bronze Hose Barb Thru-Hull Fitting - 3/4"  Features: NPS Thread With Hose Connection C83600 Bronze UL Listed 647B Accessories SKU 67311 — MFG# 90919 SKU 67312 — MFG# 90923 SKU 67313 — MFG# 90925 SKU 6... More Details

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GROCO Bronze Hose Barb Thru-Hull Fitting - 2"

Thru-Hull Fittings, GROCO
$140.39
Bronze Hose Barb Thru-Hull Fitting - 2"  Features: NPS Thread With Hose Connection C83600 Bronze UL Listed 647B Accessories SKU 67311 — MFG# 90919 SKU 67312 — MFG# 90923 SKU 67313 — MFG# 90925 SKU 673... More Details

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GROCO Bronze Hose Barb Thru-Hull Fitting - 1/2"

Thru-Hull Fittings, GROCO
$30.58
Bronze Hose Barb Thru-Hull Fitting - 1/2"  Features: NPS Thread With Hose Connection C83600 Bronze UL Listed 647B Accessories SKU 67311 — MFG# 90919 SKU 67312 — MFG# 90923 SKU 67313 — MFG# 90925 SKU 6... More Details

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GROCO Bronze Hose Barb Thru-Hull Fitting - 1"

Thru-Hull Fittings, GROCO
$63.94
Bronze Hose Barb Thru-Hull Fitting - 1"  Features: NPS Thread With Hose Connection C83600 Bronze UL Listed 647B Accessories SKU 67311 — MFG# 90919 SKU 67312 — MFG# 90923 SKU 67313 — MFG# 90925 SKU 673... More Details

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GROCO Bronze Hose Barb Thru-Hull Fitting - 1-1/8"

Thru-Hull Fittings, GROCO
$72.28
Bronze Hose Barb Thru-Hull Fitting - 1-1/8"  Features: NPS Thread With Hose Connection C83600 Bronze UL Listed 647B Accessories SKU 67311 — MFG# 90919 SKU 67312 — MFG# 90923 SKU 67313 — MFG# 90925 SKU... More Details

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GROCO Bronze Hose Barb Thru-Hull Fitting - 1-1/4"

Thru-Hull Fittings, GROCO
$86.18
Bronze Hose Barb Thru-Hull Fitting - 1-1/4"  Features: NPS Thread With Hose Connection C83600 Bronze UL Listed 647B Accessories SKU 67311 — MFG# 90919 SKU 67312 — MFG# 90923 SKU 67313 — MFG# 90925 SKU... More Details

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GROCO Bronze Hose Barb Thru-Hull Fitting - 1-1/2"

Thru-Hull Fittings, GROCO
$107.03
Bronze Hose Barb Thru-Hull Fitting - 1-1/2"  Features: NPS Thread With Hose Connection C83600 Bronze UL Listed 647B Accessories SKU 67311 — MFG# 90919 SKU 67312 — MFG# 90923 SKU 67313 — MFG# 90925 SKU... More Details

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GROCO 4" Bronze High Speed Thru-Hull Fitting w/Nut

Thru-Hull Fittings, GROCO
$1,919.59
4" Bronze High Speed Thru-Hull Fitting w/Nut  Features: Designed for increased flow compared to standard Thru Hulls and with less drag NPSM / NPT combination thread C83600 Bronze Accessories SKU 67311... More Details

3/4" Stainless Steel Extra Long Thru-Hull Fitting w/Nut  Features: Extra long NPSM / NPT combination thread #316 Stainless Steel Accessories SKU 67311 — MFG# 90919 SKU 67312 — MFG# 90923 SKU 67313 — M... More Details

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GROCO 3/4" Slotted Hi Speed Thru-Hull w/Nut

Thru-Hull Fittings, GROCO
$56.99
3/4" Slotted Hi Speed Thru-Hull with Nut Features: 3/4" NPSM / NPT combination thread C83600 Bronze With Nut Slotted More Details

3/4" NPS NPT Combo Stainless Steel Thru-Hull Fitting with Nut Features: NPSM / NPT combination thread #316 Stainless Steel Sizes from 1/2" to 3" UL Listed 647B BSPP and Stainless Steel models availabl... More Details

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GROCO 3/4" NPS NPT Combo Bronze Thru-Hull Fitting w/Nut

Thru-Hull Fittings, GROCO
$31.97
3/4" NPS NPT Combo Bronze Thru-Hull Fitting with Nut Features: NPSM / NPT combination thread C83600 Bronze Sizes from 1/2" to 5" UL Listed 647B Available with (-W) or without nut (-L) BSPP and Stainle... More Details

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GROCO 3/4" Bronze High Speed Thru-Hull Fitting w/Nut

Thru-Hull Fittings, GROCO
$31.97
3/4" Bronze High Speed Thru-Hull Fitting w/Nut  Features: Designed for increased flow compared to standard Thru Hulls and with less drag NPSM / NPT combination thread C83600 Bronze Accessories SKU 673... More Details

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GROCO 3/4" Bronze Extra Long Thru-Hull Fitting w/Nut

Thru-Hull Fittings, GROCO
$59.77
3/4" Bronze Extra Long Thru-Hull Fitting w/Nut  Features: Extra long NPSM / NPT combination thread C83600 Bronze Accessories SKU 67311 — MFG# 90919 SKU 67312 — MFG# 90923 SKU 67313 — MFG# 90925 SKU 67... More Details

3/4" Bronze Extra Long High Speed Thru-Hull Fitting w/Nut  Features: Designed for increased flow compared to standard Thru Hulls and with less drag Extra Long NPSM / NPT combination thread C83600 Bron... More Details

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GROCO 3/4" Bronze Combo Scoop Thru-Hull w/Nut

Thru-Hull Fittings, GROCO
$61.16
3/4" Bronze Combo Scoop Thru-Hull w/Nut  Features: Designed for increased flow compared to standard Thru Hulls NPSM / NPT combination thread C83600 Bronze Specifications: Thread NPS: 3/4" Accessories ... More Details

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GROCO 3/4" 90 Degree Hose Thru-Hull Fitting

Thru-Hull Fittings, GROCO
$77.84
3/4" 90 Degree Hose Thru-Hull Fitting  Features: 90 Degree Barb #316 Stainless Steel Thru Hull with Bronze Hose Connection UL Listed 647B Accessories SKU 67311 — MFG# 90919 SKU 67312 — MFG# 90923 SKU ... More Details

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GROCO 3" Bronze Thru-Hull Fitting w/Nut

Thru-Hull Fittings, GROCO
$461.48
3" Bronze Thru-Hull Fitting with Nut Higher flow rates are possible with this 3" GROCO thru-hull fitting than conventional thru-hulls. Features: NPSM / NPT combination thread C83600 Bronze UL listed 6... More Details

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GROCO 3" Bronze High Speed Thru-Hull Fitting w/Nut

Thru-Hull Fittings, GROCO
$433.68
3" Bronze High Speed Thru-Hull Fitting w/Nut  Features: Designed for increased flow compared to standard Thru Hulls and with less drag NPSM / NPT combination thread C83600 Bronze Accessories SKU 67311... More Details

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GROCO 2" Stainless Steel Extra Long Thru-Hull Fitting w/Nut

Thru-Hull Fittings, GROCO
$119.54
2" Stainless Steel Extra Long Thru-Hull Fitting w/Nut  Features: Extra long NPSM / NPT combination thread #316 Stainless Steel Accessories SKU 67311 — MFG# 90919 SKU 67312 — MFG# 90923 SKU 67313 — MFG... More Details

2" NPS NPT Combo Stainless Steel Thru-Hull Fitting with Nut Features: NPSM / NPT combination thread #316 Stainless Steel Sizes from 1/2" to 3" UL Listed 647B BSPP and Stainless Steel models available ... More Details

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GROCO 2" NPS NPT Combo Bronze Thru-Hull Fitting w/Nut

Thru-Hull Fittings, GROCO
$148.73
2" NPS NPT Combo Bronze Thru-Hull Fitting with Nut Features: NPSM / NPT combination thread C83600 Bronze Sizes from 1/2" to 5" UL Listed 647B Available with (-W) or without nut (-L) BSPP and Stainless... More Details

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GROCO 2" Bronze High Speed Thru-Hull Fitting w/Nut

Thru-Hull Fittings, GROCO
$148.73
2" Bronze High Speed Thru-Hull Fitting w/Nut  Features: Designed for increased flow compared to standard Thru Hulls and with less drag NPSM / NPT combination thread C83600 Bronze Accessories SKU 67311... More Details

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GROCO 2" Bronze Extra Long Thru-Hull Fitting w/Nut

Thru-Hull Fittings, GROCO
$182.09
2" Bronze Extra Long Thru-Hull Fitting w/Nut  Features: Extra long NPSM / NPT combination thread C83600 Bronze Accessories SKU 67311 — MFG# 90919 SKU 67312 — MFG# 90923 SKU 67313 — MFG# 90925 SKU 6731... More Details

2" Bronze Extra Long High Speed Thru-Hull Fitting w/Nut  Features: Designed for increased flow compared to standard Thru Hulls and with less drag Extra Long NPSM / NPT combination thread C83600 Bronze... More Details

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GROCO 2" Bronze Combo Scoop Thru-Hull w/Nut

Thru-Hull Fittings, GROCO
$230.74
2" Bronze Combo Scoop Thru-Hull w/Nut  Features: Designed for increased flow compared to standard Thru Hulls NPSM / NPT combination thread C83600 Bronze Specifications: Thread NPS: 2" Accessories SKU ... More Details

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GROCO 2" 90 Degree Hose Thru-Hull Fitting

Thru-Hull Fittings, GROCO
$251.59
2" 90 Degree Hose Thru-Hull Fitting  Features: 90 Degree Barb #316 Stainless Steel Thru Hull with Bronze Hose Connection UL Listed 647B Accessories SKU 67311 — MFG# 90919 SKU 67312 — MFG# 90923 SKU 67... More Details

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GROCO 2-1/2" Slotted Hi Speed Thru-Hull w/Nut

Thru-Hull Fittings, GROCO
$268.27
2-1/2" Slotted Hi Speed Thru-Hull with Nut Features: 2-1/2" NPSM / NPT combination thread C83600 Bronze With Nut Slotted More Details

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GROCO 2-1/2" Bronze Thru-Hull Fitting w/Nut

Thru-Hull Fittings, GROCO
$321.09
2-1/2" Bronze Thru-Hull Fitting with Nut Higher flow rates are possible with this 2-1/2" GROCO thru-hull fitting than conventional thru-hulls. Features: NPSM / NPT combination thread C83600 Bronze UL ... More Details

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GROCO 2-1/2" Bronze High Speed Thru-Hull Fitting w/Nut

Thru-Hull Fittings, GROCO
$315.53
2-1/2" Bronze High Speed Thru-Hull Fitting w/Nut  Features: Designed for increased flow compared to standard Thru Hulls and with less drag NPSM / NPT combination thread C83600 Bronze Accessories SKU 6... More Details

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GROCO 2-1/2" Bronze Combo Scoop Thru-Hull w/Nut

Thru-Hull Fittings, GROCO
$372.52
2-1/2" Bronze Combo Scoop Thru-Hull w/Nut  Features: Designed for increased flow compared to standard Thru Hulls NPSM / NPT combination thread C83600 Bronze Specifications: Thread NPS: 2-1/2" Accessor... More Details

1/2" NPS NPT Combo Stainless Steel Thru-Hull Fitting with Nut Features: NPSM / NPT combination thread #316 Stainless Steel Sizes from 1/2" to 3" UL Listed 647B BSPP and Stainless Steel models availabl... More Details

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GROCO 1/2" NPS NPT Combo Bronze Thru-Hull Fitting w/Nut

Thru-Hull Fittings, GROCO
$29.19
1/2" NPS NPT Combo Bronze Thru-Hull Fitting with Nut Features: NPSM / NPT combination thread C83600 Bronze Sizes from 1/2" to 5" UL Listed 647B Available with (-W) or without nut (-L) BSPP and Stainle... More Details

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GROCO 1/2" Bronze Combo Scoop Thru-Hull w/Nut

Thru-Hull Fittings, GROCO
$48.65
1/2" Bronze Combo Scoop Thru-Hull w/Nut Features: Designed for increased flow compared to standard Thru Hulls NPSM / NPT combination thread C83600 Bronze Specifications: Thread NPS: 1/2" Accessories S... More Details

1" Stainless Steel Extra Long Thru-Hull Fitting w/Nut  Features: Extra long NPSM / NPT combination thread #316 Stainless Steel Accessories SKU 67311 — MFG# 90919 SKU 67312 — MFG# 90923 SKU 67313 — MFG... More Details

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GROCO 1" Slotted Hi Speed Thru-Hull w/Nut

Thru-Hull Fittings, GROCO
$84.79
1" Slotted Hi Speed Thru-Hull with Nut Features: 1" NPSM / NPT combination thread C83600 Bronze With Nut Slotted More Details

1" NPS NPT Combo Stainless Steel Thru-Hull Fitting with Nut Features: NPSM / NPT combination thread #316 Stainless Steel Sizes from 1/2" to 3" UL Listed 647B BSPP and Stainless Steel models available ... More Details

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GROCO 1" NPS NPT Combo Bronze Thru-Hull Fitting w/Nut

Thru-Hull Fittings, GROCO
$45.87
1" NPS NPT Combo Bronze Thru-Hull Fitting with Nut Features: NPSM / NPT combination thread C83600 Bronze Sizes from 1/2" to 5" UL Listed 647B Available with (-W) or without nut (-L) BSPP and Stainless... More Details

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GROCO 1" Bronze High Speed Thru-Hull Fitting w/Nut

Thru-Hull Fittings, GROCO
$51.43
1" Bronze High Speed Thru-Hull Fitting w/Nut  Features: Designed for increased flow compared to standard Thru Hulls and with less drag NPSM / NPT combination thread C83600 Bronze Accessories SKU 67311... More Details

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GROCO 1" Bronze Extra Long Thru-Hull Fitting w/Nut

Thru-Hull Fittings, GROCO
$76.45
1" Bronze Extra Long Thru-Hull Fitting w/Nut  Features: Extra long NPSM / NPT combination thread C83600 Bronze Accessories SKU 67311 — MFG# 90919 SKU 67312 — MFG# 90923 SKU 67313 — MFG# 90925 SKU 6731... More Details

1" Bronze Extra Long High Speed Thru-Hull Fitting w/Nut  Features: Designed for increased flow compared to standard Thru Hulls and with less drag Extra Long NPSM / NPT combination thread C83600 Bronze... More Details

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GROCO 1" Bronze Combo Scoop Thru-Hull w/Nut

Thru-Hull Fittings, GROCO
$83.40
1" Bronze Combo Scoop Thru-Hull w/Nut  Features: Designed for increased flow compared to standard Thru Hulls NPSM / NPT combination thread C83600 Bronze Specifications: Thread NPS: 1" Accessories SKU ... More Details

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GROCO 1" 90 Degree Hose Thru-Hull Fitting

Thru-Hull Fittings, GROCO
$95.91
1" 90 Degree Hose Thru-Hull Fitting  Features: 90 Degree Barb #316 Stainless Steel Thru Hull with Bronze Hose Connection UL Listed 647B Accessories SKU 67311 — MFG# 90919 SKU 67312 — MFG# 90923 SKU 67... More Details

1-1/4" Stainless Steel Extra Long Thru-Hull Fitting w/Nut  Features: Extra long NPSM / NPT combination thread #316 Stainless Steel Accessories SKU 67311 — MFG# 90919 SKU 67312 — MFG# 90923 SKU 67313 —... More Details

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GROCO 1-1/4" Slotted Hi Speed Thru-Hull w/Nut

Thru-Hull Fittings, GROCO
$144.56
1-1/4" Slotted Hi Speed Thru-Hull with Nut Features: 1-1/4" NPSM / NPT combination thread C83600 Bronze With Nut Slotted More Details

1-1/4" NPS NPT Combo Stainless Steel Thru-Hull Fitting with Nut Features: NPSM / NPT combination thread #316 Stainless Steel Sizes from 1/2" to 3" UL Listed 647B BSPP and Stainless Steel models availa... More Details

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GROCO 1-1/4" NPS NPT Combo Bronze Thru-Hull Fitting w/Nut

Thru-Hull Fittings, GROCO
$76.45
1-1/4" NPS NPT Combo Bronze Thru-Hull Fitting with Nut Features: NPSM / NPT combination thread C83600 Bronze Sizes from 1/2" to 5" UL Listed 647B Available with (-W) or without nut (-L) BSPP and Stain... More Details

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GROCO 1-1/4" Bronze High Speed Thru-Hull Fitting w/Nut

Thru-Hull Fittings, GROCO
$91.74
1-1/4" Bronze High Speed Thru-Hull Fitting w/Nut  Features: Designed for increased flow compared to standard Thru Hulls and with less drag NPSM / NPT combination thread C83600 Bronze Accessories SKU 6... More Details

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GROCO 1-1/4" Bronze Extra Long Thru-Hull Fitting w/Nut

Thru-Hull Fittings, GROCO
$123.71
1-1/4" Bronze Extra Long Thru-Hull Fitting w/Nut  Features: Extra long NPSM / NPT combination thread C83600 Bronze Accessories SKU 67311 — MFG# 90919 SKU 67312 — MFG# 90923 SKU 67313 — MFG# 90925 SKU ... More Details

1-1/4" Bronze Extra Long High Speed Thru-Hull Fitting w/Nut  Features: Designed for increased flow compared to standard Thru Hulls and with less drag Extra Long NPSM / NPT combination thread C83600 Br... More Details

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GROCO 1-1/4" Bronze Combo Scoop Thru-Hull w/Nut

Thru-Hull Fittings, GROCO
$119.54
1-1/4" Bronze Combo Scoop Thru-Hull w/Nut  Features: Designed for increased flow compared to standard Thru Hulls NPSM / NPT combination thread C83600 Bronze Specifications: Thread NPS: 1-1/4" Accessor... More Details

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GROCO 1-1/4" 90 Degree Hose Thru-Hull Fitting

Thru-Hull Fittings, GROCO
$152.90
1-1/4" 90 Degree Hose Thru-Hull Fitting  Features: 90 Degree Barb #316 Stainless Steel Thru Hull with Bronze Hose Connection UL Listed 647B Accessories SKU 67311 — MFG# 90919 SKU 67312 — MFG# 90923 SK... More Details

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Northern Marine Canada
Proudly Canadian Owned & Operated!
Serving customers across Canada & the USA with marine parts and accessories.
Canadian Head Office:
Kingston, Ontario, Canada
Warehouse Locations:
Toronto, Ontario, Canada
New Jersey, USA
Florida, USA

About Us

Northern Marine is a Canadian supplier of premium marine and RV parts and accessories from top industry brands. 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.