Deck Fills & Drains

  1. Sea-Dog Stainless Steel Hose Deck Fill Replacement Cap

    $30.19 - $34.42
  2. Whitecap Nylon Deck Fill

    $34.42
    0
  3. Whitecap Replacement Nylon Deck Fill Cap

    $13.49
    5
  4. Sea-Dog Nylon Drain Plug - 520010-1

    $6.18
    0
  5. Sea-Dog Garboard Drain and Plug - 520040-1

    $20.23
    0
  6. T-H Marine Flow-Max Ball Scupper - FMS-1-0-DP

    $25.41
    0
  7. T-H Marine Scupper Flapper Repair Kit - FSRK-3-DP

    $20.30
    1
  8. T-H Marine Cockpit Scupper Drain - CSD-92-DP

    $97.87
    0
  9. Sea-Dog Scupper Valve - 520500-1

    $8.71
    1
  10. Forespar Garboard Drain Tube with Plug

    $33.25
    0
  11. Davis Instruments Snap Tool Multi-Key - 382

    $23.29
    0
  12. Attwood Deck Fill with Gasoline Imprint - 66406-5

    $56.98
  13. Perko Flush Mount Cockpit Scupper - 0285DP

    $28.78
  14. Perko Waste Deck Plate - 0524DP0CHR

    $205.03
  15. Sea-Dog Fresh Water Inlet

    $33.01 - $45.70
  16. Whitecap Stainless Steel Waste Fill Adapter - 6126ADPT

    $121.86
    1
  17. T-H Marine Large Rectangular Scuppers - LRS-2-DP

    $23.51
    0
  18. Beckson Screw Type Drain Plug - 1"

    $8.96 - $10.17
  19. Perko Fuel System Replacement Locking Gas Cap - 1324DP1BLK

    $51.34
    0
  20. Seachoice Drain Tube

    $7.87 - $19.52
    2
  21. Sea-Dog Garboard Drain T-Handle Plug - 520047-1

    $22.29
  22. Whitecap Replacement Deck Fill Key - 6060C

    $17.52
    1
  23. Scandvik Flush Shower Drain - 10352

    $26.25
  24. Seachoice Splashwell Drain Tube - 19131

    $10.09
  25. Seachoice Gas Deck Fill with Cap & Beaded Chain Tether - 32041

    $23.13
  26. Perko Locking Fuel Fill Insert - 0525DP0BLK

    $54.16
  27. Perko Adjustable Deck Plate Key - 0826DP0CHR

    $44.29
    1
  28. Perko Fuel & Water Fill

    $61.21
  29. Whitecap Replacement Deck FIll Cap and Chain - 6074C

    $55.57
  30. Forespar MF 830 Deck Fill

    See price in cart
    1
  31. Attwood Drain Plug Kit - 17211-3

    $9.31
    0
  32. 9% off

    Whitecap Push Up Deck Fill

    $102.10 - $171.21
    $102.10 - $164.14
    1
  33. Whitecap Brass Screw Type Bailer Plug

    $10.89 - $15.94
  34. T-H Marine Push-In Overflow Drain Tube

    $18.87 - $55.57
    1
  35. Sea-Dog Plugmate Garboard/Drain Plug Wrench - 520045-1

    $17.88
    1
  36. Camco Water Pressure Regulator - 40055

    $19.56
    0
  37. Seachoice Gas Deck Fill with Cap & Strap Tether - 32011

    $47.11
  38. Seachoice Gas Deck Fill with Vent & Cap - 32061

    $59.80
    1
  39. Perko Fuel System Locking Cap - 1324DP0BLK

    $47.11
  40. Perko Flush Mount Drain

    $100.69 - $123.25
  41. Whitecap Universal Push-Up Deck Fill Replacement Cap

    $80.95 - $96.46
  42. Whitecap Livewell Drain Thru Hull

    $25.27 - $26.54
  43. Sea-Dog Drain Tube - 520320-1

    $6.31
  44. Sea-Dog Brass Drain Tube

    $7.11 - $8.11
  45. Vetus Wrench Key - VE87

    $17.57
    0
  46. White Water Wire Deck Plate Key - 1350KY

    $8.35
    0
  47. T-H Marine Flush Mount Scupper Valve Assembly

    $15.88 - $18.69
    0
  48. T-H Marine Drain Plug

    $13.08 - $14.56
    0

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!