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

Seachoice Drain Plug

Perko Vented Gas Fill

Seachoice Drain Tube

Seachoice Self Bailing Scupper

Perko T-Handle Garboard Drain Plug - 0266DP0PLB

Perko Unmarked Fill Cap

Seachoice Stainless Steel Deck Fill with Cap

Perko Surface Mount Scupper Valve Assembly - 0365DP

Perko Locking Fuel Fill Insert - 0525DP0BLK

Perko Flush Mount Drain

T-H Marine Push-In Overflow Drain Tube

Sea-Dog Fresh Water Inlet

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

Attwood Drain Plug Kit - 17211-3

T-H Marine Flush Mount Scupper Valve Assembly

Perko Plastic Angled Neck Vented Deck Fill

Seachoice Gas Deck Fill with Cap & Strap Tether - 32011

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

Seachoice Gas Deck Fill with Vent & Cap - 32061

Sea-Dog Brass Drain Tube

T-H Marine Drain Plug

T-H Marine PVC Push-In Drain Plug

Perko Garboard Drain Plug - 0714DP1PLB

Seachoice Bailer Safety Kit - 45431

Sea-Dog Universal Deck Plate Key - 335690-1

Sea-Dog Deck Fill Key - 351399-1

Sea-Dog T-Handle Drain Plug

Sea-Dog Garboard Replacement Drain Plugs - 520051-1

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

Perko Polymer Gas Fill - 1613DP0BLK

Seachoice Nylon Deck Fill with Cap

Seachoice Deck Fill Replacement Cap

Seachoice Nylon Drain Plug - 18641

Sea-Dog Chrome Plated Zinc Hose Deck Fill Replacement Cap - 351755-1

Seachoice Gas Deck Fill with Locking Cap - 32051

Seachoice Garboard Drain Flange & Plug

Seachoice Replacement Garboard Drain Plug

Seachoice Drain Plug - 18781

Sea-Dog Chrome Plated Zinc Hose Deck Fill with Splash Guard - 351750-1

Sea-Dog Replacement Plug - 520021-1

Attwood Replacement Drain Plugs (2-Pack) - 9842PD1

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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