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 Universal EPA Pull-up Cap with Chain - 6063C

Whitecap Nylon Cockpit Scupper

Seachoice Deck Plate Key - 32651

Seachoice Nylon Deck Fill with Cap

Whitecap Deck Plate Key - 6060

Whitecap Chrome Plated Zinc Hose Deck Fill with Splash Guard - S-7021C

Whitecap Universal Deck Plate Key - S-7041P

Whitecap Nylon Deck Fill Replacement Cap

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

Perko Deck Fill - 1313DP0CHR

Seaview Vault Stainless Steel Drain Plug

Seaview Vault Center Drain Plug

Whitecap Angled Scupper with Barb - 6559

Whitecap Aluminum Turn Type Bailer Plug - S-0288

Whitecap Stainless Steel Screw Type Bailer Plug - S-0291C

Seachoice Drain Plug - 18781

Seachoice Garboard Drain Flange & Plug

Seachoice Replacement Garboard Drain Plug

Whitecap Gas Hose Deck Fill with Splash Guard - 6001

Whitecap Garboard Drain Plug - 6351C

Whitecap Self-Captive Garboard Drain Replacement Plug - 6354C

Whitecap Self-Captive Garboard Drain Plug pkg

Whitecap Replacement Deck Fill Cap and Chain - 6167

Whitecap Replacement Deck FIll Cap and Chain - 6002C

Whitecap Drain Tube Kit - 90 deg.

Whitecap Drain Tube Grate

Seachoice Gas Deck Fill with Locking Cap - 32051

Whitecap S-7021 Replacement Cap and Chain - S-7022C

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

Sea-Dog Replacement Plug - 520021-1

Attwood Livewell/Bailer Drain Plug - 1/2" - 7533A7

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

Ronstan Drain Plug & Housing

Ronstan Drain Plug & Clipped Housing

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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