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 1-1/4" NPT Stainless Steel In-Line Ball Valve [IBV-1250-S]
Regular price $89.95 USDRegular price$135.00 USD-$45.05 USD Sale price $89.95 USD -
Vendor:GROCO
GROCO 1-1/4" NPT x 1-1/8" ID Bronze 90 Degree Pipe to Hose Fitting Standard Flow Elbow [PTHC-1125]
Regular price $21.95 USDRegular price$33.00 USD-$11.05 USD Sale price $21.95 USD -
Vendor:GROCO
GROCO 1/2" Bronze Pipe Nipple Check Valve [PNC-500]
Regular price $11.95 USDRegular price$17.00 USD-$5.05 USD Sale price $11.95 USD -
Vendor:GROCO
GROCO 2" Bronze NPS to NPT Flange Adapter [IBVF-2000]
Regular price $78.95 USDRegular price$118.00 USD-$39.05 USD Sale price $78.95 USD -
Vendor:GROCO
GROCO 2" NPT x 2-1/4" Bronze Full Flow Pipe to Hose Straight Fitting [FF-2000]
Regular price $57.95 USDRegular price$86.00 USD-$28.05 USD Sale price $57.95 USD -
Vendor:GROCO
GROCO Backing Block f/1-1/4" 1-1/2" Seacocks [BB-2]
Regular price $59.95 USDRegular price$89.00 USD-$29.05 USD Sale price $59.95 USD -
Vendor:GROCO
GROCO 1" Bronze Flanged Full Flow Seacock [BV-1000]
Regular price $278.95 USDRegular price$418.00 USD-$139.05 USD Sale price $278.95 USD -
Vendor:GROCO
GROCO 1-1/2" NPT x 1-3/4" Bronze Full Flow Pipe to Hose Straight Fitting [FF-1500]
Regular price $24.95 USDRegular price$37.00 USD-$12.05 USD Sale price $24.95 USD -
Vendor:GROCO
GROCO 1-1/2" Bronze Flanged Full Flow Seacock [BV-1500]
Regular price $330.95 USDRegular price$606.00 USD-$275.05 USD Sale price $330.95 USD -
Vendor:Perko
Perko Vented Flip Top Cap f/Fills with 1-1/2" Hose - Black [0795DP0BLK]
Regular price $28.95 USDRegular price$45.64 USD-$16.69 USD Sale price $28.95 USD -
Vendor:Perko
Perko 0541Vented Fill f/1-1/2" Hose - Straight Neck - Gas [0541DPGCHR]
Regular price $52.95 USDRegular price$84.58 USD-$31.63 USD Sale price $52.95 USD -
Vendor:Perko
Perko 0542 Vented Fill f/1-1/2" Hose - Angled Neck - Gas - Black [0542DPGBLK]
Regular price $34.95 USDRegular price$55.11 USD-$20.16 USD Sale price $34.95 USD -
Vendor:Perko
Perko 0591 Vented Fill f/1-1/2" Hose - Straight Neck - Chrome [0591DPGCHR]
Regular price $82.95 USDRegular price$131.53 USD-$48.58 USD Sale price $82.95 USD -
Vendor:Forespar Performance Products
Forespar Marelon Full-Flow Seacock 2" Mushroom Through-Hull [904048ABYC]
Regular price $170.95 USDRegular price$248.95 USD-$78.00 USD Sale price $170.95 USD -
Vendor:Attwood Marine
Attwood Scupper Valve [3876-3]
Regular price $10.95 USDRegular price$12.99 USD-$2.04 USD Sale price $10.95 USD -
Vendor:Attwood Marine
Attwood Cockpit Drain - No Screen [3875C1]
Regular price $9.95 USDRegular price$12.99 USD-$3.04 USD Sale price $9.95 USD