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

Forespar Garboard Drain Tube with Plug

Perko Adjustable Deck Plate Key - 0826DP0CHR

Perko Unmarked Fill

Perko Chrome Plated Straight Neck Vented Deck Fill

Perko Garboard Drain Plug - 0714DP1PLB

Perko Fuel & Water Fill

Seachoice Self Bailing Scupper

Forespar MF 830 Deck Fill

Sea-Dog Fresh Water Inlet

T-H Marine Push-In Overflow Drain Tube

T-H Marine Flow-Max Ball Scupper - FMS-1-0-DP

T-H Marine Scupper Flapper Repair Kit - FSRK-3-DP

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

Sea-Dog Garboard Drain and Plug - 520040-1

Sea-Dog Nylon Drain Plug - 520010-1

Sea-Dog Replacement Drain Plug - 520041-1

Sea-Dog Snap Handle Drain Plug - 520070-1

Perko Unmarked Fill Cap

Whitecap Replacement Deck FIll Cap and Chain - 6074C

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

Whitecap Transom Well Drain Tube - S-3818C

T-H Marine Flush Mount Scupper Valve Assembly

T-H Marine Large Rectangular Scuppers - LRS-2-DP

Whitecap Replacement Deck Fill Key - 6060C

Perko Fuel System Replacement Locking Gas Cap - 1324DP1BLK

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

Beckson Screw Type Drain Plug - 1"

Scandvik Flush Shower Drain - 10352

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

Whitecap Nylon Cockpit Scupper

Seachoice Garboard Drain Plug - 50-18661

Whitecap Nylon Deck Fill Replacement Cap

Sea-Dog Stainless Steel Hose Deck Fill Replacement Cap

T-H Marine All Purpose Drain/Hatch Drain

T-H Marine Floor Drain and Vent

T-H Marine PVC Push-In Drain Plug

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

Barton Drain Plug

White Water Wire Deck Plate Key - 1350KY

Sea-Dog Scupper Valve - 520500-1

Forespar CF254 Flush Head Deck Drain with Hose Tailpipe - 906038

Attwood Drain Plug Kit - 17211-3

Camco Water Pressure Regulator - 40055

Attwood Deck Fill with Gasoline Imprint - 66406-5

Perko Locking Fuel Fill Insert - 0525DP0BLK

Whitecap Tapered Hose Deck Fill

Whitecap Stainless Trim Nylon Scupper with Hose Barb - 6561

Whitecap Replacement Pull-Up Threaded Cap with Chain - 6063

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?

0Filters

Change Locale

Helpful Information

Get In Touch

Resources

Stay Connected