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

Whitecap Transom Well Drain Tube - S-3818C

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

Sea-Dog Stainless Steel Hose Deck Fill Replacement Cap

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

Perko Adjustable Deck Plate Key - 0826DP0CHR

Perko Surface Mount Scupper Valve Assembly - 0365DP

Perko Unmarked Fill

Whitecap Stainless Steel Scupper with Hose Barb

Whitecap Replacement Nylon Deck Fill Cap

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

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

Sea-Dog Nylon Drain Plug - 520010-1

Davis Instruments Snap Tool Multi-Key - 382

Perko Locking Fuel Fill Insert - 0525DP0BLK

Perko Fuel & Water Fill

Whitecap Tapered Hose Deck Fill

Perko Unmarked Fill Cap

T-H Marine Push-In Overflow Drain Tube

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

Beckson Screw Type Drain Plug - 1"

Seachoice Stainless Steel Deck Fill with Cap

Perko Fuel System Locking Cap - 1324DP0BLK

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

Whitecap Replacement Deck Fill Key - 6060C

Jabsco Flush Mount Water Pressure Regulator - 44411-2045

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

Camco Water Pressure Regulator - 40055

Seachoice Garboard Drain Plug - 50-18661

Perko Flush Mount Cockpit Scupper - 0285DP

Perko Waste Deck Plate - 0524DP0CHR

Scandvik Flush Shower Drain - 10352

Attwood Deck Fill with Gasoline Imprint - 66406-5

Perko Chrome Cockpit Scupper

Whitecap Universal Push-Up Deck Fill Replacement Cap

Sea-Dog T-Handle Drain Plug

Whitecap Push Up Deck Fill

Whitecap Stainless Steel Waste Fill Adapter - 6126ADPT

Whitecap Brass Screw Type Bailer Plug

T-H Marine Flush Mount Scupper Valve Assembly

Forespar CF254 Flush Head Deck Drain with Hose Tailpipe - 906038

Attwood Drain Plug Kit - 17211-3

Seachoice Splashwell Drain Tube - 19121

Seachoice Splashwell Drain Tube - 19131

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

Seachoice Gas Deck Fill with Vent & Cap - 32061

Perko Plastic Angled Neck Vented Deck Fill

Whitecap Replacement Deck FIll Cap and Chain - 6074C

Whitecap Livewell Drain Thru Hull

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?

0Filters

Change Locale

Helpful Information

Get In Touch

Resources

Stay Connected