Hose & Pipe Fittings

  1. Forespar Marelon Threaded Reducer/Adapter

    $17.82
    0
  2. Whale Quick Connect Plumbing System Fitting - WX1522B

    $6.19
    1
  3. Whale Quick Connect Plumbing System Fitting - WX1575B

    $41.08
    0
  4. Rule Pump Outlet Adapter

    $11.99 - $19.05
  5. AquaLock Metric Stackable Elbow Fitting - 15 mm (9/16") - 81902164

    $11.24
    0
  6. Whale Pump Hose Elbow Adapter

    $11.83 - $12.52
    0
  7. Whale Quick Connect Plumbing System Fitting - WX1583B

    $6.43
    1
  8. Groco PTH-C Series Bronze BSPP Pipe to Hose Fitting - 90 deg.

    $17.27 - $77.55
  9. Forespar FTC Series Marelon Straight Threaded Connector

    $9.04 - $22.14
    0
  10. Groco TPC Series Tail Piece - 90 deg.

    $50.53 - $147.75
    0
  11. Jabsco Discharge Port Adapter - 98023-0080

    $28.93
    0
  12. AquaLock CTS x NPT Plastic Male Adapter - 1/2" x 1/2" - 81902880

    $10.16
    0
  13. AquaLock Plastic Female Swivel Elbow Fitting - 1/2" CTS x 1/2" NPS - 0959090

    $11.94
    0
  14. Whale Quick Connect Plumbing System Fitting - WX1544B

    $30.28
    0
  15. Whale Stem Adapter - 1/2" NPT Male to 15 mm (9/16") - WX1524B

    $19.70
    0
  16. Groco Bronze BSPP Pipe to Hose Fitting

    $15.22 - $28.93
  17. AquaLock CST Metric Reducing Coupling - 15 mm (19/32") x 1/2" - 81902162

    $11.24
    0
  18. 9% off

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

    $13.07
    $11.83
    0
  19. Whale Y Hose Connector - YP6114

    $12.87
    1
  20. T-H Marine Standard Tee Fitting

    $8.90
    0
  21. 9% off

    AquaLock Metric Hose Barb Adapter - 15 mm (9/16") x 1/2" HB - 81902200

    $15.80
    $14.27
    0
  22. Seachoice Elbow Fitting - 90 deg.

    $9.56 - $10.28
  23. 9% off

    Whale Quick Connect Plumbing System Fitting - WX1582B

    $18.69
    $16.88
    0
  24. Whale Quick Connect Plumbing System Fitting - WX1584B

    $4.04
    0
  25. Forespar MEC 12 Marelon Elbow Threaded Connector - 90 deg. - 920336

    $11.53
    0
  26. AquaLock Plastic Female Adapter - 1/2" CTS x 1/2" NPS - 0959085

    $12.41
    0
  27. AquaLock CTS Plastic Elbow Fitting - 1/2" - 81902934

    $11.21
    0
  28. PSS PYI Hose Clamp Tip Jackets

    $12.10 - $37.03
    0
  29. Scandvik Straight Water Hose Adapter - 10948

    $5.98
    0
  30. 9% off

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

    $13.49
    $12.21
    0
  31. AquaLock CTS Plastic Stackable Elbow Fitting - 1/2" - 81902941

    $10.82
    0
  32. 28% off

    AquaLock Metric End Cap - 15 mm (9/16") - 81902173

    $13.56
    $9.67
    0
  33. Seachoice Double-Ended Thru-Hull Connector - 18201

    $14.80
  34. 9% off

    Whale Quick Connect Plumbing System Fitting - WX1515B

    $7.06
    $6.42
    0
  35. Whale Male Stem Non-Return Valve Adapter - 15 mm (9/16") - WX1534B

    $22.54
    0
  36. Raritan Vented Loop - 3/4" - VL3/4

    $39.73
  37. Forespar MF 846 Vent Barb Assembly - 903004

    $12.65
    0
  38. 22% off

    MarineEast Hose to Hose Splice/Adapter

    $5.98 - $12.71
    $4.61 - $10.29
    2
  39. 9% off

    AquaLock Plastic Coupling - 1/2" CTS - 81902914

    $12.17
    $11.01
    0
  40. AquaLock Plastic End Cap - 1/2" CTS - 81902998

    $10.13
    0
  41. 9% off

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

    $15.48
    $13.99
    0
  42. 8% off

    AquaLock Metric Collet Clip - 15 mm (9/16") - 81902174

    $3.88
    $3.55
    1
  43. Seachoice Y Fitting - 18231

    $11.92
  44. Vetus Brass Hose Connector

    $9.47 - $76.18
  45. Whale Quick Connect Plumbing System Fitting Mount - Surface - WX1565B

    $1.98
    0
  46. T-H Marine Aerator Spray Head/Wash Down Combo Fittings - AHVWD-90-DP

    $23.05
    0
  47. Groco Stainless Steel Pipe to Hose Fitting

    $15.95 - $55.93
  48. Scandvik Straight Hose Barb Adapter - 3/4" - 10304P

    $10.51

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!