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

SHURflo Wall Mount Pressure Reducing Water Connection - 183-029-18

Seachoice Stainless Steel Deck Fill with Cap

Whitecap Self-Captive Garboard Drain Plug pkg

Perko Replacement Vented Cap

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

Seaview inteliPlug ProX Drain Plug - SVIPPROX

Perko Waste Deck Plate - 1269DP0CHR

Perko Fuel & Water Fill

Whitecap Drain Tube Grate

Seachoice Gas Deck Fill with Vent & Cap - 32061

Plastimo Stainless Steel Winch/Deck Filler Key - 61804

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

Attwood Deck Fill with Gasoline Imprint - 66406-5

Whitecap Replacement Pull-Up Threaded Cap with Chain - 6063

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

Whitecap Replacement Deck FIll Cap and Chain - 6074C

Perko Locking Fuel Fill Insert - 0525DP0BLK

Seachoice Garboard Drain Plug - 50-18661

Dometic NozAll Deck Pump-Out Adapter

Perko Fuel System Replacement Locking Gas Cap - 1324DP1BLK

Perko Plastic Straight Neck Vented Deck Fill - 0543DPGBLK

Perko Plastic Angled Neck Vented Deck Fill

Whitecap Garboard Drain Plug - 6351C

Whitecap Angled Scupper with Barb - 6559

Whitecap Replacement Deck FIll Cap and Chain - 6002C

Whitecap Self-Captive Garboard Drain Replacement Plug - 6354C

Perko Garboard Drain Plug - 0714DP1PLB

Perko Fuel System Locking Cap - 1324DP0BLK

Seachoice Gas Deck Fill with Cap & Strap Tether - 32011

Whitecap Stainless Trim Nylon Scupper with Hose Barb - 6561

Whitecap Washdown Inlet

Sea-Dog Stainless Steel Hose Deck Fill

Perko Adjustable Deck Plate Key - 0826DP0CHR

Perko Replacement Vented Flip Top Cap - 0795DP0BLK

Seaview Vault Stainless Steel Drain Plug

Perko Vented Gas Fill

Whitecap Threaded Scupper - S-3814

Whitecap Deck Fill Cap Replacement with Chain - 6061C

Whitecap Replacement Deck FIll Cap and Chain - 6061

Groco Adjustable Collapsible Spanner Wrench - SW-2531

Forespar MF 830 Deck Fill

Whitecap Nylon Deck Fill

Forespar Garboard Drain Tube with Plug

Perko Deck Fill - 1313DP0CHR

Seachoice Bailer Safety Kit - 45431

Whitecap Nylon Cockpit Scupper

Sea-Dog Fresh Water Inlet

Forespar CF254 Flush Head Deck Drain with Hose Tailpipe - 906038

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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