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Premium Marine Quality Parts

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Prevents backwash Chemical resistant materialsThermo-plastic flapper... More Details

Quickly drains decks For decks above waterlineMaximum drainage for larger boatsEasily clears debrisFits 2" x 5-1/2" hole... More Details

These overflow drain tubes feature a tough, flexible vinyl plastic end with a standpipe of white PVC tubing. To use simply insert vinyl end into the opening of thru-hull fitting. To drain livewell or ... More Details

These overflow drain tubes feature a tough, flexible vinyl plastic end with a standpipe of white PVC tubing. To use simply insert vinyl end into the opening of thru-hull fitting. To drain livewell or ... More Details

These overflow drain tubes feature a tough, flexible vinyl plastic end with a standpipe of white PVC tubing. To use simply insert vinyl end into the opening of thru-hull fitting. To drain livewell or ... More Details

These overflow drain tubes feature a tough, flexible vinyl plastic end with a standpipe of white PVC tubing. To use simply insert vinyl end into the opening of thru-hull fitting. To drain livewell or ... More Details

These push in plugs are used to stop water flow through drains or overflows from baitwell or livewell. Also work well as plugs for sink drains and built in cooler drains. These plugs are injection mol... More Details

High Quality UV and Chemical Resistant Virgin PolyproSized to Fit All Marine Hose... More Details

High Quality UV and Chemical Resistant Virgin PolyproSized to Fit All Marine Hose... More Details

High Quality UV and Chemical Resistant Virgin PolyproSized to Fit All Marine Hose... More Details

High Quality UV and Chemical Resistant Virgin PolyproSized to Fit All Marine Hose... More Details

High Quality UV and Chemical Resistant Virgin Polypro Sized to Fit All Marine Hose... More Details

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Thru Hull 1-1/2" 90D Hose White - Th1592Dp - 232-Th1592Dpf1

T-H Marine, Thru-Hulls & Seacocks
$36.49
High quality UV and chemical resistant virgin polypropelene. Features a finished head and a single pass around nut.... More Details

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Thru Hull 1-1/2" Long - Th1502Xldp - 232-Th1502Xldpf1

T-H Marine, Thru-Hulls & Seacocks
$26.39
High Quality UV and Chemical Resistant Virgin PolyproSized to Fit All Marine Hose... More Details

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Thru Hull 2" Ss W/Hose End - 70Thh200 - 379-70Thh200F1

Buck Algonquin, Thru-Hulls & Seacocks
$139.79
316 Stainless steel.... More Details

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Thru Hull 3/4 Straight Black - Th750Dp - 232-Th750Dpf1

T-H Marine, Thru-Hulls & Seacocks
$8.89
High Quality UV and Chemical Resistant Virgin PolyproSized to Fit All Marine Hose... More Details

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Thru Hull 3/4 Straight White - Th752Dp - 232-Th752Dpf1

T-H Marine, Thru-Hulls & Seacocks
$17.49
High Quality UV and Chemical Resistant Virgin PolyproSized to Fit All Marine Hose... More Details

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Thru Hull 5/8" - Th652Dp - 232-Th652Dpf1

T-H Marine, Thru-Hulls & Seacocks
$10.89
High Quality UV and Chemical Resistant Virgin PolyproSized to Fit All Marine Hose... More Details

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Thru Hull-1-1/2 - 520790 - 354-520790F1

Sea-Dog Line, Thru-Hulls & Seacocks
$11.16
These Thru-Hulls are ideal for salt water use because they are impervious to electrolysis and corrosion. For use with hose to allow water to pass in or out of a vessel. Designed for drainage above the... More Details

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Thru Hull-1-1/8 - 520770 - 354-520770F1

Sea-Dog Line, Thru-Hulls & Seacocks
$8.56
These Thru-Hulls are ideal for salt water use because they are impervious to electrolysis and corrosion. For use with hose to allow water to pass in or out of a vessel. Designed for drainage above the... More Details

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Thru-Hull 1-1/2" Plastic - 0301Dp8 - 9-0301Dp8F1

Perko, Thru-Hulls & Seacocks
$31.79
Molded white plastic with narrow flange. For use with hose.... More Details

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Thru-Hull Fitting 1 1/2" -- - 520790-1 - 354-5207901F1

Sea-Dog Line, Thru-Hulls & Seacocks
$14.79
These Thru-Hulls are ideal for salt water use because they are impervious to electrolysis and corrosion. For use with hose to allow water to pass in or out of a vessel. Designed for drainage above the... More Details

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Thru-Hull Fitting 1 1/8" -- - 520770-1 - 354-5207701F1

Sea-Dog Line, Thru-Hulls & Seacocks
$11.76
These Thru-Hulls are ideal for salt water use because they are impervious to electrolysis and corrosion. For use with hose to allow water to pass in or out of a vessel. Designed for drainage above the... More Details

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Thru-Hull Fitting 3/4" - 520750-1 - 354-5207501F1

Sea-Dog Line, Thru-Hulls & Seacocks
$7.83
These Thru-Hulls are ideal for salt water use because they are impervious to electrolysis and corrosion. For use with hose to allow water to pass in or out of a vessel. Designed for drainage above the... More Details

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Thru-Hull Fitting 5/8" -- - 520740-1 - 354-5207401F1

Sea-Dog Line, Thru-Hulls & Seacocks
$7.83
These Thru-Hulls are ideal for salt water use because they are impervious to electrolysis and corrosion. For use with hose to allow water to pass in or out of a vessel. Designed for drainage above the... More Details

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Thru-Hull W/Scupper - 520510-1 - 354-5205101F1

Sea-Dog Line, Thru-Hulls & Seacocks
$26.89
This Thru-Hull with Scupper Valve mounts through the transom and provides a water exit for boats with self-bailing cockpits. Ideal for above the water line drainage. Valve features a soft black flappe... More Details

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Thru-Hull-3/4 - 520750 - 354-520750F1

Sea-Dog Line, Thru-Hulls & Seacocks
$4.61
These Thru-Hulls are ideal for salt water use because they are impervious to electrolysis and corrosion. For use with hose to allow water to pass in or out of a vessel. Designed for drainage above the... More Details

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Thru-Hull-5/8 - 520740 - 354-520740F1

Sea-Dog Line, Thru-Hulls & Seacocks
$4.42
These Thru-Hulls are ideal for salt water use because they are impervious to electrolysis and corrosion. For use with hose to allow water to pass in or out of a vessel. Designed for drainage above the... More Details

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Top Strainer With Non-Return - Sb5865 - 698-Sb5865F1

Whale Water Systems, Thru-Hulls & Seacocks
$65.49
Mount in the lowest part of bilge to secure the intake line. Strainers are valuable in minimizing intake of debris. Supplied with non-return valves.... More Details

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Trac Ecological Flushcap® For Groco Arg Strainers - 1285-A - 202-1285Af1

Trac Ecological, Thru-Hulls & Seacocks
$102.79
Available in three sizes to fit any GROCO ARG Strainer, FLUSHcap® makes flushing your raw water cooled equipment a snap. Temporarily replacing your existing strainer cap with a FLUSHcap® will allow yo... More Details

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Trac Ecological Flushcap® For Groco Arg Strainers - 8214017 - 202-1285Bf1

Trac Ecological, Thru-Hulls & Seacocks
$113.79
Available in three sizes to fit any GROCO ARG Strainer, FLUSHcap® makes flushing your raw water cooled equipment a snap. Temporarily replacing your existing strainer cap with a FLUSHcap® will allow yo... More Details

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Trac Ecological Flushcap® For Groco Arg Strainers - 8215015 - 202-1285Cf1

Trac Ecological, Thru-Hulls & Seacocks
$136.79
Available in three sizes to fit any GROCO ARG Strainer, FLUSHcap® makes flushing your raw water cooled equipment a snap. Temporarily replacing your existing strainer cap with a FLUSHcap® will allow yo... More Details

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Whale Ak1319 Intake Strainer - Ak1319 - 698-Ak1319F1

Whale Water Systems, Thru-Hulls & Seacocks
$34.89
Intake Strainer... More Details

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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 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.