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

Forespar MF 830 Deck Fill

Seachoice Drain Plug

Sea-Dog Fresh Water Inlet

T-H Marine Scupper Flapper Repair Kit - FSRK-3-DP

Forespar Garboard Drain Flange with Plug

Forespar Garboard Drain Tube with Plug

Scandvik Flush Shower Drain - 10352

Perko Chrome Plated Straight Neck Vented Deck Fill

Seachoice Self Bailing Scupper

T-H Marine Push-In Overflow Drain Tube

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

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

Sea-Dog Snap Handle Drain Plug - 520070-1

Perko Flush Mount Cockpit Scupper - 0285DP

Perko Unmarked Fill Cap

Whitecap Replacement Deck FIll Cap and Chain - 6074C

Seachoice Garboard Drain Plug - 50-18661

Seachoice Gas Deck Fill with Cap & Beaded Chain Tether - 32041

Sea-Dog Stainless Steel Hose Deck Fill Replacement Cap

T-H Marine Flush Mount Scupper Valve Assembly

Beckson Screw Type Drain Plug - 1"

Perko Fuel System Replacement Locking Gas Cap - 1324DP1BLK

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

Whitecap Replacement Deck Fill Key - 6060C

Whitecap Nylon 90 deg. Drain Tube Kit - S-3850

Perko Garboard Drain Plug - 0714DP1PLB

Whitecap Transom Well Drain Tube - S-3818C

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

T-H Marine All Purpose Drain/Hatch Drain

T-H Marine Floor Drain and Vent

T-H Marine PVC Push-In Drain Plug

T-H Marine Cockpit Scupper Drain - CSD-92-DP

White Water Wire Deck Plate Key - 1350KY

Forespar CF254 Flush Head Deck Drain with Hose Tailpipe - 906038

Camco Water Pressure Regulator - 40055

Attwood Deck Fill with Gasoline Imprint - 66406-5

Perko Locking Fuel Fill Insert - 0525DP0BLK

Whitecap Tapered Hose Deck Fill

Whitecap Stainless Trim Nylon Scupper with Hose Barb - 6561

Whitecap Replacement Pull-Up Threaded Cap with Chain - 6063

Whitecap Universal EPA Pull-up Cap with Chain - 6063C

Whitecap Washdown Inlet

Perko Polymer Gas Fill - 1613DP0BLK

Whitecap Livewell Drain Thru Hull

Seachoice Scupper Valve - 18261

Seachoice Splashwell Drain Tube - 19121

Seachoice Splashwell Drain Tube - 19131

Seachoice Drain Tube

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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