Deck Fills & Drains

  1. 9% off

    Whitecap Deck Fill Cap Replacement with Chain - 6061C

    $36.46
    $32.88
    2
  2. 9% off

    Whitecap Replacement Deck FIll Cap and Chain - 6061

    $36.46
    $32.88
  3. 9% off

    Whitecap Threaded Scupper - S-3814

    $37.84
    $34.12
  4. Forespar Garboard Drain Tube with Plug

    $34.16
    0
  5. Seachoice Gas Deck Fill with Cap & Strap Tether - 32011

    $35.08
  6. Seaview InteliPlug Pro Captive Drain Plug & Garboard Assembly - SVIPPRO

    $35.37
    0
  7. Perko Vented Gas Fill

    $37.84
    1
  8. 9% off

    Whitecap Stainless Trim Nylon Scupper with Hose Barb - 6561

    $41.98
    $37.84
  9. 9% off

    Whitecap Washdown Inlet

    $43.36 - $93.04
    $39.09 - $83.80
  10. 9% off

    Whitecap Angled Scupper with Barb - 6559

    $44.74
    $40.33
  11. 9% off

    Whitecap Garboard Drain Plug - 6351C

    $44.74
    $40.33
  12. Perko Replacement Vented Flip Top Cap - 0795DP0BLK

    $40.60
  13. Seaview Vault Stainless Steel Drain Plug

    $41.17 - $63.20
  14. 9% off

    Whitecap Self-Captive Garboard Drain Replacement Plug - 6354C

    $46.12
    $41.57
  15. 9% off

    Whitecap Replacement Deck FIll Cap and Chain - 6002C

    $46.12
    $41.57
  16. 9% off

    Sea-Dog Stainless Steel Hose Deck Fill

    $46.12 - $66.82
    $41.57 - $60.20
  17. Perko Adjustable Deck Plate Key - 0826DP0CHR

    $41.98
    1
  18. 9% off

    Whitecap Replacement Deck FIll Cap and Chain - 6074C

    $48.88
    $44.05
  19. Perko Garboard Drain Plug - 0714DP1PLB

    $44.74
  20. Perko Fuel System Locking Cap - 1324DP0BLK

    $44.74
  21. 9% off

    Plastimo Stainless Steel Winch/Deck Filler Key - 61804

    $50.26
    $45.30
    4
  22. Dometic NozAll Deck Pump-Out Adapter

    $46.12 - $47.50
    3
  23. Seachoice Gas Deck Fill with Vent & Cap - 32061

    $46.12
  24. Seachoice Bailer Safety Kit - 45431

    $46.95
  25. Perko Plastic Straight Neck Vented Deck Fill - 0543DPGBLK

    $47.50
  26. Perko Plastic Angled Neck Vented Deck Fill

    $47.50
  27. Perko Fuel System Replacement Locking Gas Cap - 1324DP1BLK

    $48.88
    0
  28. Perko Locking Fuel Fill Insert - 0525DP0BLK

    $50.26
  29. 9% off

    Whitecap Replacement Pull-Up Threaded Cap with Chain - 6063

    $57.16
    $51.51
  30. T-H Marine Overflow Drain Tube - ODT-2T-DP

    $51.64
    0
  31. 9% off

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

    $58.54
    $52.75
  32. 9% off

    Whitecap Drain Tube Grate

    $58.54 - $62.68
    $52.75 - $56.47
  33. Attwood Deck Fill with Gasoline Imprint - 66406-5

    $53.02
  34. 9% off

    Whitecap Self-Captive Garboard Drain Plug pkg

    $62.68 - $73.72
    $56.47 - $66.41
  35. Seachoice Garboard Drain Plug - 50-18661

    $57.09
  36. Perko Waste Deck Plate - 1269DP0CHR

    $57.16
    1
  37. Perko Fuel & Water Fill

    $57.16
  38. 9% off

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

    $64.06 - $66.82
    $57.72 - $60.20
    3
  39. SHURflo Wall Mount Pressure Reducing Water Connection - 183-029-18

    $58.54
    0
  40. 32% off

    Perko Locking Deck Fill - Diesel - 0599DPDCHR

    $91.66
    $62.27
    0
  41. Perko Replacement Vented Cap

    $62.68
  42. 34% off

    Perko Locking Deck Fill - Gas - 0599DPGCHR

    $99.94
    $65.17
    0
  43. Seachoice Stainless Steel Deck Fill with Cap

    $68.20 - $86.14
  44. 9% off

    Whitecap Hose Deck Fill

    $76.48 - $119.28
    $68.89 - $107.41
    4
  45. 9% off

    Whitecap Replacement Deck Fill Cap and Chain - 6167

    $77.86
    $70.14
  46. SHURflo Wall Mount Pressure Reducing Water Connection - 183-029-14

    $70.96
    4
  47. Perko Chrome Plated Straight Neck Vented Deck Fill

    $70.96 - $72.34
  48. 9% off

    Whitecap Universal Push-Up Deck Fill Replacement Cap

    $79.24 - $90.28
    $71.38 - $81.31

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!