Hose & Pipe Fittings

  1. Groco FF Series Straight Full-Flow Pipe to Hose Adapter

    $13.65 - $202.23
    5
  2. AquaLock NPS Metric Female Swivel Elbow Fitting - 15 mm (9/16") x 1/2" - 81902166

    $13.30
    4
  3. AquaLock Metric Tee - 15 mm (9/16") - 81902169

    $13.30
    3
  4. Forespar HC 20x24 Tapered NPT Thread Connector - 910168

    $13.23
  5. Forespar Vented Loop Barb Cap - 903013

    $13.23
  6. Forespar MF 846 Vent Barb Assembly - 903004

    $13.19
    0
  7. AquaLock Plastic Female Adapter - 1/2" CTS x 1/2" NPS - 0959085

    $12.94
    1
  8. Whale Pump Hose Elbow Adapter

    $12.92 - $13.68
    0
  9. Vetus Brass Hose Connector

    $12.84 - $111.97
  10. PYI Hose Clamp Tip Jackets

    $12.61 - $38.65
    1
  11. Rule Pump Outlet Adapter

    $12.50 - $19.87
  12. AquaLock Plastic Stackable Tee - 1/2" CTS - 81902975

    $12.48
    0
  13. AquaLock Plastic Female Swivel Elbow Fitting - 1/2" CTS x 1/2" NPS - 0959090

    $12.44
    0
  14. 24% off

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

    $16.14
    $12.26
    0
  15. Forespar MEC 12 Marelon Elbow Threaded Connector - 90 deg. - 920336

    $12.02
    0
  16. AquaLock CST Metric Reducing Coupling - 15 mm (19/32") x 1/2" - 81902162

    $11.71
    1
  17. AquaLock Metric Stackable Elbow Fitting - 15 mm (9/16") - 81902164

    $11.71
    0
  18. AquaLock CTS Plastic Elbow Fitting - 1/2" - 81902934

    $11.68
    0
  19. AquaLock CTS Plastic Stackable Elbow Fitting - 1/2" - 81902941

    $11.27
    0
  20. AquaLock NPS Metric Female Swivel Adapter - 15 mm (19/32") x 1/2" - 81902158

    $11.27
    1
  21. Whale Quick Connect Adaptor Semi-Rigid Pipe - 3/4" BSP - WX1542B

    $11.06
    1
  22. Groco PN Series Pipe Nipples

    $11.03 - $193.78
    4
  23. Scandvik Straight Hose Barb Adapter - 3/4" - 10304P

    $10.95
    1
  24. 14% off

    AquaLock Plastic Coupling - 1/2" CTS - 81902914

    $12.68
    $10.86
    0
  25. Seachoice Elbow Fitting - 90 deg.

    $10.85 - $11.67
  26. Seachoice Tee Fitting

    $10.85 - $13.19
  27. AquaLock CTS x NPT Plastic Male Adapter - 1/2" x 1/2" - 81902880

    $10.58
    0
  28. AquaLock Plastic End Cap - 1/2" CTS - 81902998

    $10.55
    0
  29. Groco Bronze Pipe to Hose Fitting

    $10.55 - $252.97
    8
  30. AquaLock Metric End Cap - 15 mm (9/16") - 81902173

    $10.51
    0
  31. Sierra Hose Barb - 3/8" - 18-8074

    $10.51
  32. ACR Bronze 90 deg. Male/Female Elbow Pipe Fitting

    $10.37 - $197.98
    3
  33. AquaLock Metric Elbow Fitting - 15 mm (9/16") - 81902163

    $10.21
    1
  34. AquaLock Metric Coupling - 15 mm (19/32") - 81902161

    $9.59
    1
  35. AquaLock Metric Male Adapter - 15 mm (9/16") x 1/2" NPT - 81902195

    $9.59
    0
  36. Forespar FTC Series Marelon Straight Threaded Connector

    See price in cart
    0
  37. T-H Marine Standard Tee Fitting

    $9.27
    0
  38. Forespar MEC 8 Marelon Elbow Threaded Connector - 90 deg. - 920207

    $8.90
    0
  39. Scandvik Delrin Hose Adapter - 10961P

    $8.86
  40. Scandvik Straight Pipe

    $8.61 - $11.02
  41. ACR Bronze Square Head Pipe Plug

    $8.54 - $41.47
    1
  42. Forespar Marelon Tailpipe/Hose Connector

    $8.54 - $28.78
    See price in cart
    3
  43. Forespar MTC Series Marelon Threaded Reducer/Adapter

    $8.38 - $23.10
    0
  44. ACR Bronze Pipe Cap

    $8.18 - $61.21
    0
  45. Trident Marine Right Hand Threaded VAC Cuff - 143-1120

    $7.69
  46. Forespar Marelon 90 deg. Elbow Tailpipe/Hose Connector

    $7.51 - $27.81
    See price in cart
    1
  47. 24% off

    Racor Replacement SNAPP Filter Hose Fittings

    $7.37 - $25.41
    $7.37 - $25.41
    3
  48. Whale Quick Connect Plumbing System Fitting - WX1583B

    $6.99
    3

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!