Durable Marine Fittings for Secure Plumbing Connections
Build or maintain a reliable onboard plumbing system with our wide selection of marine-grade fittings. Whether you're working on freshwater, bilge, fuel, or sanitation lines, our elbows, tees, valves, hose barbs, and connectors ensure leak-free, secure connections that stand up to life on the water.
Crafted from corrosion-resistant materials like bronze, stainless steel, and marine-grade plastics, these fittings are engineered to withstand harsh marine environments and high-pressure systems. Available in a range of sizes and configurations, they’re compatible with standard marine hoses and plumbing components.
Shop now for high-quality marine fittings and get the dependable performance your boat demands—trip after trip.
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Vendor:GROCO
GROCO 1" NPT Bronze 45 Degree Pipe to 1" Hose [PTHD-1000]
Regular price $14.95 USDRegular price$22.00 USD-$7.05 USD Sale price $14.95 USD -
Vendor:GROCO
GROCO 1-1/4" Bronze Flanged Full Flow Seacock [BV-1250]
Regular price $357.95 USDRegular price$537.00 USD-$179.05 USD Sale price $357.95 USD -
Vendor:GROCO
GROCO 2" NPT Stainless Steel In-Line Ball Valve [IBV-2000-S]
Regular price $148.95 USDRegular price$223.00 USD-$74.05 USD Sale price $148.95 USD -
Vendor:Perko
Perko Garboard Drain Plus w/Steel Wrench [0124000PLB]
Regular price $105.95 USDRegular price$160.88 USD-$54.93 USD Sale price $105.95 USD -
Vendor:Perko
Perko 0540 Spare Cap w/Chain [0540DPG99A]
Regular price $45.95 USDRegular price$72.55 USD-$26.60 USD Sale price $45.95 USD -
Vendor:Perko
Perko 2" Seacock Ball Valve Bronze MADE IN THE USA [0805009PLB]
Regular price $448.95 USDRegular price$929.28 USD-$480.33 USD Sale price $448.95 USD -
Vendor:Rule
Rule Replacement Garden Hose Adapter [68]
Regular price $10.95 USDRegular price$12.99 USD-$2.04 USD Sale price $10.95 USD -
Vendor:T-H Marine Supplies
T-H Marine Washdown Fitting w/Shutoff Valve [WDV-1-DP]
Regular price $32.95 USDRegular price$42.63 USD-$9.68 USD Sale price $32.95 USD -
Vendor:Perko
Perko Spare Cap f/1313 Gas Fill [0126DP0BLK]
Regular price $11.95 USDRegular price$16.94 USD-$4.99 USD Sale price $11.95 USD -
Vendor:Perko
Perko 1" Pipe to Hose Adapter 90 Degree Bronze MADE IN THE USA [0063DP6PLB]
Regular price $22.95 USDRegular price$46.37 USD-$23.42 USD Sale price $22.95 USD -
Vendor:Perko
Perko Fuel System Locking Cap f/ 1-1/2" Non-Vented Fills - 0520 / 0527 / 0528 / 0557 / 0599 / 1270 [1324DP1BLK]
Regular price $35.95 USDRegular price$57.46 USD-$21.51 USD Sale price $35.95 USD -
Vendor:Perko
Perko Gas Tank Vent w/Swivel Elbow - Chrome/Black [0561DP4CHR]
Regular price $17.95 USDRegular price$27.64 USD-$9.69 USD Sale price $17.95 USD -
Vendor:GROCO
GROCO 2" Bronze Tri-Flanged Ball Valve/Seacock [FBV-2000]
Regular price $207.95 USDRegular price$311.00 USD-$103.05 USD Sale price $207.95 USD -
Vendor:GROCO
GROCO 3/4" Bronze In-Line Check Valve [CV-75]
Regular price $24.95 USDRegular price$37.00 USD-$12.05 USD Sale price $24.95 USD -
Vendor:GROCO
GROCO Backing Block f/2" 2-1/2" Seacocks [BB-3]
Regular price $69.95 USDRegular price$104.00 USD-$34.05 USD Sale price $69.95 USD -
Vendor:GROCO
GROCO Bronze Pipe Nipple - 2-1/2" NPT [PN-2500]
Regular price $44.95 USDRegular price$67.00 USD-$22.05 USD Sale price $44.95 USD