Hose & Pipe Fittings

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

    $7.88
    1
  2. Whale Quick Connect Plumbing System Fitting - WX1532B

    $4.34
    2
  3. Rule Hose Y Fitting - 213

    $21.99
  4. Groco Bronze BSPP Pipe to Hose Fitting

    $10.83 - $21.99
  5. AquaLock CTS Plastic Straight Valve - 1/2" - 0959098

    $14.96
    1
  6. AquaLock Metric Hose Barb Adapter - 15 mm (9/16") x 1/2" HB - 81902200

    $10.08
    0
  7. Whale Quick Connect Plumbing System Fitting - WX1582B

    $13.02
    0
  8. Rule Pump Outlet Adapter

    $8.44 - $13.67
  9. T-H Marine Reducing Tee Fitting

    $11.28 - $12.47
    1
  10. 37% off

    ACR Bronze Pipe Coupler

    $3.49 - $51.99
    $2.19 - $51.99
    1
  11. Groco PTH-C Series Bronze BSPP Pipe to Hose Fitting - 90 deg.

    $13.11 - $60.99
  12. T-H Marine Barbed 3-Way Y Fitting - 3/4" Hose - Y-750-DP

    $13.67
    1
  13. Whale Quick Connect Plumbing System Fitting - WX1583B

    $4.53
    3
  14. Whale Y Hose Connector - YP6114

    $9.55
    1
  15. PYI Hose Clamp Tip Jackets

    $8.52 - $26.99
    1
  16. Groco TPC Series Tail Piece - 90 deg.

    $39.99 - $120.99
    1
  17. AquaLock Plastic Female Adapter - 1/2" CTS x 1/2" NPS - 0959085

    $8.75
    1
  18. AquaLock CTS Plastic Union Tee - 1/2" x 1/2" x 1/2" - 81902961

    $10.59
    0
  19. 36% off

    ACR Bronze 45 deg. Female/Female Elbow Pipe Fitting

    $3.79 - $56.99
    $2.39 - $45.59
    1
  20. AquaLock Plastic Coupling - 1/2" CTS - 81902914

    $8.57
    0
  21. AquaLock Metric End Cap - 15 mm (9/16") - 81902173

    $7.03
    0
  22. Jabsco Discharge Port Adapter - 98023-0080

    $20.99
    0
  23. Forespar MTC Series Marelon Threaded Reducer/Adapter

    $5.16 - $15.96
    0
  24. AquaLock CTS x NPT Plastic Male Adapter - 1/2" x 1/2" - 81902880

    $7.08
    0
  25. AquaLock Plastic Female Swivel Elbow Fitting - 1/2" CTS x 1/2" NPS - 0959090

    $8.40
    0
  26. Groco Stainless Steel Pipe to Hose Fitting

    $12.00 - $41.99
  27. Seachoice Elbow Fitting - 90 deg.

    $9.02
  28. 19% off

    Racor Replacement SNAPP Filter Hose Fittings

    $4.80 - $17.60
    $4.80 - $17.60
    3
  29. Forespar FTC Series Marelon Straight Threaded Connector

    See price in cart
    0
  30. Scandvik Straight Hose Barb Adapter - 3/4" - 10304P

    $7.34
    1
  31. Vetus Brass Hose Connector

    $8.68 - $78.99
  32. Seachoice Tee Fitting

    $7.14 - $9.36
  33. Seachoice Double-Ended Thru-Hull Connector - 18201

    $11.35
  34. Seachoice Y Fitting - 18231

    $10.24
  35. AquaLock Metric Elbow Clip - 15 mm (9/16") x 1/2" CTS - 81902747

    $4.19
    0
  36. 19% off

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

    $11.02
    $8.82
    0
  37. AquaLock Metric Collet Clip - 15 mm (9/16") - 81902174

    $2.97
    1
  38. Whale Male Stem Non-Return Valve Adapter - 15 mm (9/16") - WX1534B

    $17.12
    1
  39. Scandvik Straight Water Hose Adapter - 10948

    $3.60
    0
  40. Forespar MEC 8 Marelon Elbow Threaded Connector - 90 deg. - 920207

    $5.56
    0
  41. AquaLock Plastic Stackable Tee - 1/2" CTS - 81902975

    $8.43
    0
  42. T-H Marine Standard Tee Fitting

    $10.88 - $12.91
    0
  43. PYI T-Bolt Clamp Tip Jackets (25-Pack) - CJT14.25

    $10.64
    0
  44. ACR Fittings White Nylon Hose Connector - Barb to Pipe

    $2.72 - $4.29
    0
  45. Forespar MEC 12 Marelon Elbow Threaded Connector - 90 deg. - 920336

    $7.96
    0
  46. Forespar MF 846 Vent Barb Assembly - 903004

    $7.96
    0
  47. 19% off

    ACR Brass Pipe Fitting

    $1.50 - $3.48
    $1.50 - $3.48
    0
  48. Scandvik Straight Pipe

    $5.68 - $7.39

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!