Hose & Pipe Fittings

  1. 19% off

    ACR Bronze 45 deg. Male/Female Elbow Pipe Fitting

    $12.73 - $104.53
    $10.30 - $83.74
    2
  2. Scandvik Straight Hose Barb Adapter - 3/4" - 10304P

    $10.51
  3. Groco PN Series Pipe Nipples

    $10.59 - $176.11
    2
  4. 18% off

    Whale Quick Connect Adaptor Semi-Rigid Pipe - 3/4" BSP - WX1542B

    $13.07
    $10.59
    0
  5. AquaLock CTS Plastic Stackable Elbow Fitting - 1/2" - 81902941

    $10.82
    0
  6. AquaLock NPS Metric Female Swivel Adapter - 15 mm (19/32") x 1/2" - 81902158

    $10.82
    0
  7. 18% off

    AquaLock CTS Plastic Union Tee - 1/2" x 1/2" x 1/2" - 81902961

    $13.49
    $10.93
    0
  8. 9% off

    AquaLock Plastic Coupling - 1/2" CTS - 81902914

    $12.17
    $11.01
    0
  9. AquaLock CTS Plastic Elbow Fitting - 1/2" - 81902934

    $11.21
    0
  10. AquaLock CST Metric Reducing Coupling - 15 mm (19/32") x 1/2" - 81902162

    $11.24
    0
  11. AquaLock Metric Stackable Elbow Fitting - 15 mm (9/16") - 81902164

    $11.24
    0
  12. 19% off

    Racor Replacement SNAPP Filter Hose Fittings

    $11.38 - $27.58
    $11.38 - $27.58
    2
  13. Forespar MEC 12 Marelon Elbow Threaded Connector - 90 deg. - 920336

    $11.53
    0
  14. Whale Pump Hose Elbow Adapter

    $11.83 - $12.52
    0
  15. Seachoice Y Fitting - 18231

    $11.92
  16. AquaLock Plastic Female Swivel Elbow Fitting - 1/2" CTS x 1/2" NPS - 0959090

    $11.94
    0
  17. AquaLock Plastic Stackable Tee - 1/2" CTS - 81902975

    $11.98
    0
  18. Rule Pump Outlet Adapter

    $11.99 - $18.28
  19. PYI Hose Clamp Tip Jackets

    $12.10 - $37.03
    0
  20. 19% off

    Groco FF Series Straight Full-Flow Pipe to Hose Adapter

    $12.14 - $182.85
    $12.14 - $182.85
    5
  21. AquaLock Plastic Female Adapter - 1/2" CTS x 1/2" NPS - 0959085

    $12.41
    0
  22. 19% off

    AquaLock Metric Stackable Tee - 15 mm (9/16") - 81902172

    $15.48
    $12.51
    0
  23. Forespar MF 846 Vent Barb Assembly - 903004

    $12.65
    0
  24. AquaLock NPS Metric Female Swivel Elbow Fitting - 15 mm (9/16") x 1/2" - 81902166

    $12.76
    3
  25. AquaLock Metric Tee - 15 mm (9/16") - 81902169

    $12.76
    3
  26. Whale Y Hose Connector - YP6114

    $12.87
    1
  27. Forespar MF-841 Replacement Duck Bill/Cap Assembly

    $13.53 - $14.87
    0
  28. AquaLock Metric End Cap - 15 mm (9/16") - 81902173

    $13.56
    0
  29. Groco PTH-C Series Bronze Pipe to Hose Fitting - 90 deg.

    $14.65 - $150.45
    6
  30. T-H Marine Reducing Tee Fitting

    $14.77 - $15.62
    1
  31. Seachoice Double-Ended Thru-Hull Connector - 18201

    $14.80
  32. PYI T-Bolt Clamp Tip Jackets (25-Pack) - CJT14.25

    $14.96
    0
  33. 19% off

    Whale Quick Connect Plumbing System Fitting - WX1582B

    $18.69
    $15.07
    0
  34. Groco Bronze BSPP Pipe to Hose Fitting

    $15.22 - $28.93
  35. AquaLock Metric Hose Barb Adapter - 15 mm (9/16") x 1/2" HB - 81902200

    $15.80
    0
  36. Seachoice Brass Tee Fitting - 50-20891

    $15.93
  37. Whale Quick Connect Plumbing System Fitting - WX1531B

    $15.96
    0
  38. Groco Stainless Steel Pipe to Hose Fitting

    $16.80 - $55.93
  39. Groco PTH-C Series Bronze BSPP Pipe to Hose Fitting - 90 deg.

    $17.27 - $77.55
  40. Groco PTHD Series Bronze Pipe to Hose Fitting - 45 deg.

    $17.59 - $153.20
    2
  41. Forespar Marelon Threaded Reducer/Adapter

    $17.82
    0
  42. Perko Pipe To Hose Adapter

    $18.04 - $184.18
  43. T-H Marine Barbed 3-Way Y Fitting - 3/4" Hose - Y-750-DP

    $18.05
    1
  44. Groco FFC Series Full-Flow Pipe To Hose Adapter - 90 deg.

    $18.88 - $327.34
    1
  45. Whale Stem Adapter - 1/2" NPT Male to 15 mm (9/16") - WX1524B

    $19.70
    0
  46. AquaLock CTS Plastic Straight Valve - 1/2" - 0959098

    $20.79
    1
  47. Whale Male Stem Non-Return Valve Adapter - 15 mm (9/16") - WX1534B

    $22.54
    1
  48. T-H Marine Aerator Spray Head/Wash Down Combo Fittings - AHVWD-90-DP

    $23.05
    0

About Hose & Pipe Fittings

Boat Hose Fittings

Boat plumbing fittings cover a wide variety of applications aboard. From thru hulls to raw water strainers, boat sink drains and vented loops, marine water pipe fittings options are extensive. Fabricated of bronze, plastic, marelon, and stainless steel the choices of fittings means doing your homework and purchasing just the right fitting for your project.

What is the best material for marine plumbing fittings?

Boat pipe fittings are available in bronze, brass, marelon, nylon, stainless and heavy-duty plastic. The best material is most likely one that matches your current plumbing, especially when joining fittings together. Complete removal and replacement of marine plumbing fittings offer the option to upgrade to higher quality material. Keep in mind that heavy bronze fittings may add unwanted weight to your vessel and depending on the application might not be necessary.

Marine plumbing is a pretty complicated business.

In through the hull, out through the transom. Loops, Y-valves, strainers, and exactly when do you need to add a seacock? Defender carries a full line of every fitting for every project, but perhaps a quick-connect fitting system would provide an uncomplicated weekend project for the average DIYer. One thing is for certain before any marine plumbing project begins, double-check the hose fittings required and have them all on hand and ready to go!

Marine hose fittings come in all shapes and sizes.

Marine hose fittings are available in 90-degree and 45-degree elbows, nipples, and couplers join different pipes together while end caps do just that, end the pipe. Tank fitting kits are available for full removal and replacement of all plumbing coming in and out of the water and holding tanks. Seacocks, thru hulls, strainers, and raw water manifolds are a bit more complicated while pipe to hose fittings and marine pipe reducers are pretty straightforward. Double-check your application and fitting shapes and sizes then get shopping at Defender Marine!