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

Sea-Dog Stainless Steel Hose Deck Fill Replacement Cap

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

Whitecap Stainless Steel Waste Fill Adapter - 6126ADPT

Whitecap Replacement Deck Fill Key - 6060C

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

T-H Marine Push-In Overflow Drain Tube

Davis Instruments Snap Tool Multi-Key - 382

Perko Adjustable Deck Plate Key - 0826DP0CHR

Whitecap Transom Well Drain Tube - S-3818C

Seachoice Gas Deck Fill with Locking Cap - 32051

Perko Flush Mount Drain

Sea-Dog Nylon Drain Plug - 520010-1

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

Perko Flush Mount Cockpit Scupper - 0285DP

Whitecap Tapered Hose Deck Fill

Whitecap Stainless Steel Scupper with Hose Barb

Whitecap EPA 1/4-Turn Pull-Up Cap with Chain

Sea-Dog Fresh Water Inlet

Sea-Dog Snap Handle Drain Plug - 520070-1

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

Perko Waste Deck Plate - 1269DP0CHR

Seachoice Drain Tube

Perko Unmarked Fill Cap

Whitecap Replacement Deck FIll Cap and Chain - 6074C

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

Seachoice Stainless Steel Deck Fill with Cap

Perko Locking Gas Fill - 1399DP0CHR

Sea-Dog Snap Handle Drain Plug - 520075-1

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

Jabsco Flush Mount Water Pressure Regulator - 44411-2045

Perko Fuel & Water Fill

Perko Garboard Drain Plug - 0714DP1PLB

Perko Fuel System Locking Cap - 1324DP0BLK

Seachoice Splashwell Drain Tube - 19121

Whitecap Washdown Inlet

Seachoice Deck Plate Key and Tool - 32671

Sea-Dog T-Handle Drain Plug

Whitecap Push Up Deck Fill

T-H Marine Flush Mount Scupper Valve Assembly

Barton Drain Plug

Whitecap Angled Scupper with Barb - 6559

Whitecap Brass Screw Type Bailer Plug

Scandvik Flush Shower Drain - 10352

Perko Plastic Straight Neck Vented Deck Fill - 0543DPGBLK

Perko Polymer Gas Fill - 1613DP0BLK

Seachoice Splashwell Drain Tube - 19131

Perko Replacement Vented Flip Top Cap - 0795DP0BLK

Whitecap Replacement Deck FIll Cap and Chain - 6061

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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