Hose & Pipe Fittings

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!

Hose & Pipe Fittings

Groco Bronze Pipe to Hose Fitting

Groco PTH-C Series Bronze Pipe to Hose Fitting - 90 deg.

Groco PN Series Pipe Nipples

Groco FF Series Straight Full-Flow Pipe to Hose Adapter

Groco FFC Series Full-Flow Pipe To Hose Adapter - 90 deg.

Groco PTHD Series Bronze Pipe to Hose Fitting - 45 deg.

Groco HVL Series Vented Loop

Groco TPT Series Straight Full-Flow Pipe to Hose Adapter

AquaLock Metric Straight Valve - 15 mm (9/16") - 81902216

AquaLock NPS Metric Female Swivel Adapter - 15 mm (19/32") x 1/2" - 81902158

AquaLock Metric Tee - 15 mm (9/16") - 81902169

AquaLock Metric Elbow Fitting - 15 mm (9/16") - 81902163

AquaLock CTS Plastic Straight Valve - 1/2" - 0959098

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

AquaLock Metric Coupling - 15 mm (19/32") - 81902161

AquaLock Metric Stackable Elbow Fitting - 15 mm (9/16") - 81902164

Groco PTH-C Series Bronze BSPP Pipe to Hose Fitting - 90 deg.

AquaLock CTS x NPT Plastic Male Adapter - 1/2" x 1/2" - 81902880

AquaLock Plastic Female Swivel Elbow Fitting - 1/2" CTS x 1/2" NPS - 0959090

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

Groco TPC Series Tail Piece - 90 deg.

AquaLock CTS Plastic Elbow Fitting - 1/2" - 81902934

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

Groco Bronze BSPP Pipe to Hose Fitting

AquaLock Plastic Female Adapter - 1/2" CTS x 1/2" NPS - 0959085

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

AquaLock Plastic Coupling - 1/2" CTS - 81902914

AquaLock CTS Plastic Stackable Elbow Fitting - 1/2" - 81902941

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

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

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

Groco Stainless Steel Pipe to Hose Fitting

AquaLock CTS Plastic Collet Clips - 1/2" - 0959111

AquaLock Plastic End Cap - 1/2" CTS - 81902998

AquaLock Plastic Stackable Tee - 1/2" CTS - 81902975

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

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

AquaLock Snap Clip - 1/2" - 0650913

Groco Replacement Vacuum Breaker Diaphragm - VL-2023

Groco Raw Water Manifold

About Hose & Pipe Fittings

Boat Hose Fittings

What is the best material for marine plumbing fittings?

Marine plumbing is a pretty complicated business.

Marine hose fittings come in all shapes and sizes.

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