U.S. Customers: Orders shipped from Canada may be subject to U.S. import duties, taxes, and/or tariffs as assessed by U.S. Customs and your carrier. These charges are not included in our product prices or shipping rates. You are responsible for any duties/tariffs/fees due on delivery or prior to delivery.
Packed and shipped within Canada!

Premium Marine Quality Parts

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Constructed of corrosion resistant 304 stainless steel these butterfly vents promote air flow to prevent mold, mildew and associated odors. Features a center knob that allows for easy adjustment of th... More Details
Constructed of corrosion resistant 304 stainless steel. Promote air flow helping to preventing mold and mildew. Features a side knob that allows for easy adjustment of the opening. Fasteners sold sepa... More Details
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Sea-Dog 331600 Drain Cover, 3-1/4" - 331600-1 - 354-3316001F1

Sea-Dog Line, Lines & Rigging
$9.79
Stamped 304 StainlessVent Area 2.11 Sq. In.Fasteners: #6 RH... More Details
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Sea-Dog 3316011 Drain Cover, 2-1/2" - 331601-1 - 354-3316011F1

Sea-Dog Line, Lines & Rigging
$6.99
Stamped 304 StainlessVent Area .85 Sq. In.Fasteners: #6 RH... More Details
Features an integrated, pop-up lever to make opening and closing a snap. The concealed fasteners give a smooth look with a very low profile (.1875"), this deck plate is great for tight places and high... More Details
Features an integrated, pop-up lever to make opening and closing a snap. The concealed fasteners give a smooth look with a very low profile (.1875"), this deck plate is great for tight places and high... More Details
Features an integrated, pop-up lever to make opening and closing a snap. The concealed fasteners give a smooth look with a very low profile (.1875"), this deck plate is great for tight places and high... More Details
Features an integrated, pop-up lever to make opening and closing a snap. The concealed fasteners give a smooth look with a very low profile (.1875"), this deck plate is great for tight places and high... More Details
Sea-Dog® Screw-Out Deck Plates are molded to the highest standards using top quality UV stabilizers and antioxidants. When installing, use silicone sealant on hull or deck surface. Keep threads clean ... More Details
Molded with a collar on the bottom to hold deck plate bags or other round containers. Injection molded ABS. Molded to the highest standard using top quality UV stabilizers and anti-oxidants. Use silic... More Details
Sea-Dog® Screw-Out Deck Plates are molded to the highest standards using top quality UV stabilizers and antioxidants. When installing, use silicone sealant on hull or deck surface. Keep threads clean ... More Details
The Sea-Dog® Screw-Out Deck Plate is constructed with UV stabilized injection molded ABS and feature a clear polycarbonate lid, allowing visual inspection of the watertight compartment without removin... More Details
Sea-Dog® Screw-Out Deck Plates are molded to the highest standards using top quality UV stabilizers and antioxidants. When installing, use silicone sealant on hull or deck surface. Keep threads clean ... More Details
Molded with a collar on the bottom to hold deck plate bags or other round containers. Injection molded ABS. Molded to the highest standard using top quality UV stabilizers and anti-oxidants. Use silic... More Details
Sea-Dog® Screw-Out Deck Plates are molded to the highest standards using top quality UV stabilizers and antioxidants. When installing, use silicone sealant on hull or deck surface. Keep threads clean ... More Details
Sea-Dog® Screw-Out Deck Plates are molded to the highest standards using top quality UV stabilizers and antioxidants. When installing, use silicone sealant on hull or deck surface. Keep threads clean ... More Details
Sea-Dog® Screw-Out Deck Plates are molded to the highest standards using top quality UV stabilizers and antioxidants. When installing, use silicone sealant on hull or deck surface. Keep threads clean ... More Details
The Sea-Dog® Screw-Out Deck Plate is constructed with UV stabilized injection molded ABS and feature a clear polycarbonate lid, allowing visual inspection of the watertight compartment without removin... More Details
Molded with a collar on the bottom to hold deck plate bags or other round containers. Injection molded ABS. Molded to the highest standard using top quality UV stabilizers and anti-oxidants. Use silic... More Details
Sea-Dog® Screw-Out Deck Plates are molded to the highest standards using top quality UV stabilizers and antioxidants. When installing, use silicone sealant on hull or deck surface. Keep threads clean ... More Details
Sea-Dog® Screw-Out Deck Plates are molded to the highest standards using top quality UV stabilizers and antioxidants. When installing, use silicone sealant on hull or deck surface. Keep threads clean ... More Details
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Sea-Dog 3371981 Deck Plate Lanyard - 337198-1 - 354-3371981F1

Sea-Dog Line, Lines & Rigging
$9.39
12" Lanyard is designed to retain deck plate lids. Fits all Sea-Dog® Deck Plates. Constructed of corrosion resistant 304 stainless steel. Attaches to lid with #6 RH fastener (included) and to the inte... More Details
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Sea-Dog 337310 Thru Vent, White - 337310 - 354-337310F1

Sea-Dog Line, Lines & Rigging
$3.39
Designed for cabin or bilge ventilation. Constructed of injection molded polypropylene they are UV resistant. For use with 3" exhaust hose. Installs with four #8 FH fasteners (not included). Vent area... 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.