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

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

Forespar Garboard Drain Tube with Plug

Perko Flush Mount Cockpit Scupper - 0285DP

Perko Waste Deck Plate - 1269DP0CHR

Seachoice Stainless Steel Deck Fill with Cap

Whitecap EPA Pressurized System Deck Fill

Perko Unmarked Fill Cap

Sea-Dog Nylon Drain Plug - 520010-1

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

Whitecap Stainless Steel Waste Fill Adapter - 6126ADPT

Beckson Screw Type Drain Plug - 1"

Jabsco Water Pressure Regulator - 44412-2045

Perko Flush Mount Drain

Perko Surface Mount Scupper Valve Assembly - 0365DP

Perko Vented Gas Fill

T-H Marine Push-In Overflow Drain Tube

T-H Marine PVC Push-In Drain Plug

Forespar CF254 Flush Head Deck Drain with Hose Tailpipe - 906038

Perko Chrome Plated Straight Neck Vented Deck Fill

Forespar MF 830 Deck Fill

Seachoice Drain Tube

Whitecap Livewell Drain Thru Hull

Whitecap Transom Well Drain Tube - S-3818C

Whitecap Replacement Deck FIll Cap and Chain - 6074C

Whitecap Stainless Steel Scupper with Hose Barb

Whitecap Self-Captive Garboard Drain Plug pkg

T-H Marine Floor Drain and Vent

T-H Marine Overflow Drain Tube - ODT-2T-DP

Whitecap Brass Screw Type Bailer Plug

Perko Locking Gas Fill - 1399DP0CHR

Perko Chrome Plated Angled Neck Vented Deck Fill

Perko Fuel System Locking Cap - 1324DP0BLK

Perko Fuel & Water Fill

Seachoice Deck Plate Key - 32651

Seachoice Gas Deck Fill with Vent & Cap - 32061

Seachoice Splashwell Drain Tube - 19131

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

Whitecap Nylon Cockpit Scupper

Whitecap Self-Captive Garboard Drain Replacement Plug - 6354C

Whitecap Pull-Up Hose Deck Fill

Whitecap Stainless Trim Nylon Scupper with Hose Barb - 6561

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

Sea-Dog Drain Tube - 520210-1

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

White Water Wire Deck Plate Key - 1350KY

T-H Marine Flush Mount Scupper Valve Assembly

T-H Marine Drain Plug

T-H Marine All Purpose Drain/Hatch 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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