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 3/4" Bronze Tri-Flanged Ball Valve/Seacock [FBV-750]
Regular price $55.95 USDRegular price$83.00 USD-$27.05 USD Sale price $55.95 USD -
Vendor:Beckson Marine
Beckson 1" Drain Plug Screw Type w/Gasket - Black [DP10-B]
Regular price $5.95 USDRegular price$8.10 USD-$2.15 USD Sale price $5.95 USD -
Vendor:GROCO
GROCO 1/2" 4-Way Tank Selector Kit [TS-350-T]
Regular price $177.95 USDRegular price$267.00 USD-$89.05 USD Sale price $177.95 USD -
Vendor:GROCO
GROCO 1-1/4" NPT Bronze In-Line Ball Valve [IBV-1250]
Regular price $67.95 USDRegular price$102.00 USD-$34.05 USD Sale price $67.95 USD -
Vendor:Scandvik
Scandvik 3/8" BSP x 1/2" NPT - Brass [10002]
Regular price $15.95 USDRegular price$23.25 USD-$7.30 USD Sale price $15.95 USD -
Vendor:Jabsco
Jabsco Port Kit 90-Degree Elbow 1/2" Hose Fitting - Pair [30651-1000]
Regular price $7.95 USDRegular price$11.99 USD-$4.04 USD Sale price $7.95 USD -
Vendor:Viega
Viega MegaPress 316 FKM Reducer - 2" x 1-1/2" [91285]
Regular price $261.95 USDRegular price$381.02 USD-$119.07 USD Sale price $261.95 USD -
Vendor:Viega
Viega MegaPress 316 FKM MPT Adapter - 1-1/4" x 1-1/4" (MPT) [91225]
Regular price $149.95 USDRegular price$218.01 USD-$68.06 USD Sale price $149.95 USD -
Vendor:Viega
Viega MegaPress 316 FKM 1-1/4" Slip Coupling w/o Stop [91305]
Regular price $119.95 USDRegular price$174.00 USD-$54.05 USD Sale price $119.95 USD -
Vendor:Viega
Viega MegaPress 316 FKM 1-1/2" Slip Coupling w/o Stop [91310]
Regular price $134.95 USDRegular price$196.00 USD-$61.05 USD Sale price $134.95 USD -
Vendor:Viega
Viega MegaPress 316 FKM 1/2" Coupling w/Stop [91100]
Regular price $55.95 USDRegular price$80.51 USD-$24.56 USD Sale price $55.95 USD -
Vendor:Viega
Viega MegaPress 316 FKM 1-1/2" Union [91945]
Regular price $767.95 USDRegular price$1,118.73 USD-$350.78 USD Sale price $767.95 USD -
Vendor:Viega
Viega MegaPress 316 FKM 1/2" Union [91925]
Regular price $328.95 USDRegular price$479.47 USD-$150.52 USD Sale price $328.95 USD -
Vendor:Viega
Viega MegaPress 316 FKM 3/4" Union [91930]
Regular price $378.95 USDRegular price$552.23 USD-$173.28 USD Sale price $378.95 USD -
Vendor:Viega
Viega MegaPress 316 FKM FPT Adapter - 1/2" x 1/2" (FPT) [91240]
Regular price $108.95 USDRegular price$158.16 USD-$49.21 USD Sale price $108.95 USD -
Vendor:Viega
Viega MegaPress 316 FKM MPT Adapter - 3/4" x 1/2" (MPT) [91210]
Regular price $93.95 USDRegular price$136.98 USD-$43.03 USD Sale price $93.95 USD