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

Perko Chrome Cockpit Scupper

Perko Chrome Plated Straight Neck Vented Deck Fill

Perko Plastic Angled Neck Vented Deck Fill

Perko Polymer Gas Fill - 1613DP0BLK

Seachoice Scupper Valve - 18261

Seachoice Splashwell Drain Tube - 19121

Whitecap Garboard Drain Plug - 6351C

Whitecap Replacement Deck FIll Cap and Chain - 6074C

Whitecap Brass Drain Tube - S-5064C

Whitecap Universal Deck Plate Key - S-7041P

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

T-H Marine Drain Plug

T-H Marine PVC Push-In Drain Plug

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

Perko Locking Deck Fill - Diesel - 0599DPDCHR

Sea-Dog Garboard Replacement Drain Plugs - 520051-1

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

Sea-Dog Snap Handle Drain Plug - 520075-1

Seaview Vault Stainless Steel Drain Plug

Whitecap Nylon Garboard Drain Plug - 3051BC

Whitecap Garboard Drain & Plug - S-5051C

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

Whitecap Brass Snap-Lever Type Bailer Plug

Scandvik Shower Drain/Scupper - 10338

FillGuard Deck Fill Protection Devices - 3 Pc Gasoline Set - GASOLINEKIT

Camco Water Pressure Regulator - 40055

Perko Fuel System Locking Cap - 1324DP0BLK

Seachoice Garboard Drain Flange & Plug

Seachoice Deck Plate Key - 32651

Seachoice Deck Plate Key and Tool - 32671

Seachoice Nylon Deck Fill with Cap

Perko Unmarked Fill

Whitecap Nylon Deck Fill Replacement Cap

Seaview Vault Series Transom Drain Plug - SV101V

Seaview InteliPlug Pro Captive Drain Plug & Garboard Assembly - SVIPPRO

Seaview InteliPlug ProXT Captive Drain Plug & Garboard Assembly Kit - SVIPPROXT

Vetus Wrench Key - VE87

Seaview inteliPlug ProX Drain Plug - SVIPPROX

Seaview Vault Center Drain Plug

Whitecap Aluminum Turn Type Bailer Plug - S-0288

Whitecap Tee Handle Drain Plug with Stainless Steel Cable & Nut - S-0242C

Whitecap Aluminum Screw Type Bailer Plug

Attwood T-Handle Stainless Steel Drain Plug - 7518PD2

Perko Locking Fuel Fill Insert - 0525DP0BLK

Perko Plastic Straight Neck Vented Deck Fill - 0543DPGBLK

Seachoice Replacement Garboard Drain Plug

Seachoice Gas Deck Fill with Cap & Strap Tether - 32011

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

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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