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 Replacement Drain Plug - 520041-1

Sea-Dog Thru Hull with Scupper Valve - 520510-1

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

Perko Chrome Plated Straight Neck Vented Deck Fill

Perko Waste Deck Plate - 1269DP0CHR

Whitecap Stainless Steel Waste Fill Adapter - 6126ADPT

T-H Marine Push-In Overflow Drain Tube

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

Beckson Screw Type Drain Plug - 1"

Scandvik Flush Shower Drain - 10352

Perko Fuel System Replacement Locking Gas Cap - 1324DP1BLK

Sea-Dog Scupper Valve - 520500-1

Perko Flush Mount Cockpit Scupper - 0285DP

Perko Adjustable Deck Plate Key - 0826DP0CHR

Whitecap Replacement Deck FIll Cap and Chain - 6074C

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

Sea-Dog Fresh Water Inlet

White Water Wire Deck Plate Key - 1350KY

Whitecap Replacement Deck Fill Key - 6060C

T-H Marine Flush Mount Scupper Valve Assembly

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

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

Forespar CF254 Flush Head Deck Drain with Hose Tailpipe - 906038

Sea-Dog Nylon Drain Plug - 520010-1

Camco Water Pressure Regulator - 40055

Perko Surface Mount Scupper Valve Assembly - 0365DP

Perko Garboard Drain Plug - 0714DP1PLB

Perko Fuel & Water Fill

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

Whitecap Transom Well Drain Tube - S-3818C

Seaview InteliPlug Pro Captive Drain Plug & Garboard Assembly - SVIPPRO

T-H Marine Floor Drain and Vent

T-H Marine PVC Push-In Drain Plug

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

Attwood Drain Plug Kit - 17211-3

Barton Drain Plug

Attwood Deck Fill with Gasoline Imprint - 66406-5

Seachoice Splashwell Drain Tube - 19121

Seachoice Splashwell Drain Tube - 19131

Seachoice Drain Tube

Seachoice Deck Plate Key - 32651

Seachoice Deck Plate Key and Tool - 32671

Seachoice Bailer Safety Kit - 45431

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

Seachoice Gas Deck Fill with Vent & Cap - 32061

Seachoice Nylon Deck Fill with Cap

Seachoice Deck Fill Replacement Cap

Perko Flush Mount Drain

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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