Deck Fills & Drains

About Deck Fills & Drains

Cockpit Drains & Scuppers

Defender Marine offers a variety of cockpit drains, self-bailing scupper drains, and thru hulls with scupper valves. Thru hull valves and deck scuppers can be installed above or below the waterline and are offered in a polymer composite called Marelon, injection-molded nylon, or molded fiberglass.

Self bailers take the guess work out of cockpit drains.

When a boat is underway the pressure of water running out through the scupper opens a one-directional valve to release the water from the hull. When the scupper is closed, during rest, no water can leak into the boat. Self-bailers assist bilge pumps in keeping the hull free of excess water and are especially helpful on boats that are "wet" or take on water and spray while running.

What are deck drains made of?

Defender Marine offers scupper drains fabricated out of a variety of materials. Marelon is a polymer composite that never cracks or loses its shape, while injection-molded nylon is strong and UV resistant. Molded fiberglass cockpit drains, as well as polycarbonate boat scuppers, offer a few more options while shopping for scupper drains.

I've got a new scupper, now what?

Installation above the waterline is not complicated and can be a DIY project - just remember to measure twice! Also, examine that boat scupper drain that you have purchased and be certain that it will work for your application. Hose barb or threaded connections are questions that need to be answered before the project starts, as cockpit drains and scuppers must be plumbed to exit the hull. Be certain the project is completely prepped, and all gasket materials are ready to go before you start!

Deck Fills & Drains

FillGuard Deck Fill Protection Devices - 3 Pc Gasoline Set - GASOLINEKIT

Sea-Dog Nylon Drain Plug - 520010-1

Sea-Dog Drain Tube - 520320-1

Barton Drain Plug

Whitecap Nylon Garboard Drain Plug - 3051BC

Sea-Dog Brass Drain Tube

Seachoice Splashwell Drain Tube - 19121

White Water Wire Deck Plate Key - 1350KY

Seachoice Deck Plate Key - 32651

Sea-Dog Scupper Valve - 520500-1

Beckson Screw Type Drain Plug - 1"

T-H Marine All Purpose Drain/Hatch Drain

Sea-Dog Snap Handle Drain Plug - 520075-1

Seachoice Scupper Valve - 18261

Seachoice Drain Plug

Sea-Dog Snap Handle Drain Plug - 520070-1

Seachoice Splashwell Drain Tube - 19131

T-H Marine Floor Drain and Vent

Whitecap Brass Screw Type Bailer Plug

Whitecap Brass Snap-Lever Type Bailer Plug

Sea-Dog Garboard Drain Tube with Plug - 520050-1

Seaview Vault Series Transom Drain Plug - SV101V

Seachoice Drain Tube

Whitecap Brass Drain Tube - S-5064C

Whitecap Aluminum Snap-Lever Type Bailer Plug

Seachoice Deck Plate Key and Tool - 32671

Whitecap Replacement Nylon Deck Fill Cap

Forespar Garboard Drain Flange with Plug

Whitecap Tee Handle Boat Drain Plug with Cable - S-0211C

Groco Garboard Drain with Plug

Seaview Vault Center Drain Plug

Seaview Vault Series Pro Transom Drain Plug with Gasket and Garboard - SV101VP

Whitecap Replacement Deck Fill Key - 6060C

Whitecap Transom Well Drain Tube - S-3818C

Sea-Dog Plugmate Garboard/Drain Plug Wrench - 520045-1

Nuova Rade Adjustable Flip-Up Drain/Bailer Plug - 45309

T-H Marine Flush Mount Scupper Valve Assembly

T-H Marine Push-In Overflow Drain Tube

Whitecap Garboard Drain & Plug - S-5051C

Camco Water Pressure Regulator - 40055

Sea-Dog Garboard Drain and Plug - 520040-1

Seaview InteliPlug Pro Captive Drain Plug & Garboard Assembly - SVIPPRO

Sea-Dog Garboard Drain T-Handle Plug - 520047-1

Seachoice Self Bailing Scupper

Davis Instruments Snap Tool Multi-Key - 382

T-H Marine Large Rectangular Scuppers - LRS-2-DP

Whitecap Livewell Drain Thru Hull

T-H Marine Flow-Max Ball Scupper - FMS-1-0-DP

About Deck Fills & Drains

Cockpit Drains & Scuppers

Self bailers take the guess work out of cockpit drains.

What are deck drains made of?

I've got a new scupper, now what?

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