Deck Fills & Drains

  1. Forespar Garboard Drain Flange with Plug

    $14.08
    2
  2. 9% off

    Groco Adjustable Collapsible Spanner Wrench - SW-2531

    $35.83
    $32.31
    3
  3. 9% off

    T-H Marine Push-In Overflow Drain Tube

    $18.87 - $55.57
    $17.04 - $50.08
    1
  4. 9% off

    T-H Marine PVC Push-In Drain Plug

    $13.71 - $21.83
    $12.40 - $19.70
    1
  5. T-H Marine Scupper Flapper Repair Kit - FSRK-3-DP

    $20.17
    1
  6. 9% off

    Whitecap EPA Pull-Up Hose Deck Fill

    $88.00 - $186.70
    $83.63 - $168.09
    2
  7. 19% off

    Whitecap Push Up Deck Fill

    $102.10 - $171.21
    $81.80 - $154.14
    1
  8. 9% off

    Whitecap Replacement Deck Fill Key - 6060C

    $17.52
    $15.83
    1
  9. 9% off

    Whitecap Replacement O-Ring for Deck Fill Cap - 6061OR

    $8.96
    $8.11
    2
  10. 9% off

    Whitecap Nylon Garboard Drain Plug - 3051BC

    $7.03
    $6.38
    1
  11. 9% off

    Whitecap Tee Handle Boat Drain Plug with Cable - S-0211C

    $14.36
    $12.98
    2
  12. 9% off

    Groco Garboard Drain with Plug

    $15.64 - $110.56
    $15.64 - $99.57
    1
  13. 9% off

    Jabsco Flush Mount Water Pressure Regulator - 44411-2045

    $119.02
    $107.18
    1
  14. 9% off

    SHURflo Wall Mount Pressure Reducing Water Connection - 183-029-14

    $72.49
    $65.30
    6
  15. 9% off

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

    $17.94
    $16.21
    1
  16. 9% off

    Sea-Dog Scupper Valve - 520500-1

    $8.71
    $7.89
    1
  17. 9% off

    Sea-Dog Snap Handle Drain Plug - 520070-1

    $9.57
    $8.66
    1
  18. Dometic NozAll Deck Pump-Out Adapter

    $47.47 - $48.81
    4
  19. Perko Plastic Straight Neck Vented Deck Fill - 0543DPGBLK

    $56.98
    1
  20. 9% off

    Perko Adjustable Deck Plate Key - 0826DP0CHR

    $49.93
    $45.00
    1
  21. 9% off

    Perko Waste Deck Plate - 1269DP0CHR

    $68.26
    $61.50
    1
  22. 9% off

    Perko Vented Gas Fill

    $44.29
    $39.92 - $42.11
    1
  23. 9% off

    Whitecap Pipe Deck Fill

    $150.04 - $172.60
    $135.10 - $155.40
    1
  24. Forespar MF 830 Deck Fill

    $35.51 - $41.15
    See price in cart
    1
  25. Seachoice Gas Deck Fill with Vent & Cap - 32061

    $44.79
    1
  26. Whitecap Chrome Plated Zinc Hose Deck Fill with Splash Guard - S-7021C

    $27.95
    1
  27. 9% off

    Whitecap Deck Fill Cap Replacement with Chain - 6061C

    $38.65
    $34.85
    2
  28. 9% off

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

    $65.44 - $69.67
    $58.96 - $62.77
    3
  29. 9% off

    Whitecap Replacement Nylon Deck Fill Cap

    $13.49
    $12.19
    5
  30. Edson Universal Pumpout Nozzle with Splash Guard - 27220

    $109.17
    2
  31. 9% off

    Sea-Dog Replacement Drain Plug - 520041-1

    $10.30
    $9.33
    1
  32. 9% off

    Whitecap Hose Deck Fill

    $86.59 - $164.16
    $81.80 - $147.80
    4
  33. 9% off

    Plastimo Stainless Steel Winch/Deck Filler Key - 61804

    $58.39
    $52.61
    4
  34. 9% off

    Perko T-Handle Garboard Thru-Hull Drain Plug - 0363DP0PLB

    $190.93
    $171.90
    2
  35. 9% off

    Jabsco Water Pressure Regulator - 44411-1045

    $110.56
    $99.57
    2
  36. 9% off

    Seachoice Drain Tube

    $7.87 - $15.81
    $7.14 - $14.29
    2
  37. 9% off

    Whitecap Stainless Steel Waste Fill Adapter - 6126ADPT

    $121.86
    $109.73
    1
  38. 9% off

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

    $17.88
    $16.15
    1
  39. 9% off

    Jabsco Water Pressure Regulator - 44412-1045

    $97.87
    $88.15
    1
  40. 9% off

    Seachoice Gas Deck Fill with Locking Cap - 32051

    $165.55
    $149.06
    1
  41. 9% off

    Whitecap Replacement Push Up Deck Fill Cap

    $82.36 - $96.46
    $74.19 - $86.88
    0
  42. 9% off

    Forespar CF254 Flush Head Deck Drain with Hose Tailpipe - 906038

    $31.00
    $27.95
    0
  43. 9% off

    Forespar Garboard Drain Tube with Plug

    $33.25
    $29.98
    0
  44. 9% off

    T-H Marine Flush Mount Scupper Valve Assembly

    $15.29 - $18.69
    $15.29 - $16.87
    0
  45. 9% off

    T-H Marine Drain Plug

    $13.39
    $12.10
    0
  46. 9% off

    T-H Marine All Purpose Drain/Hatch Drain

    $9.03
    $8.18
    0
  47. 9% off

    T-H Marine Floor Drain and Vent

    $10.28 - $12.77
    $9.31 - $11.54
    0
  48. 9% off

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

    $23.51
    $21.21
    0
 
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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!