Plumbing Fittings & Valves

Plumbing fittings and valves connect hoses, control flow, and route fluids safely throughout your boat's systems. Shop marine-grade fittings and valves for reliable plumbing installations.

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Forespar 250 Series Flush Head Marelon Thru Hull
Forespar Products Corp. Forespar 250 Series Flush Head Marelon Thru Hull
From $16.25
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Groco, Bronze Thru-Hull Scoop Strainers, STH Series
Groco Groco, Bronze Thru-Hull Scoop Strainers, STH Series
From $28.50
2 reviews
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Groco, Bronze Thru-Hull Fitting, Long, THXL Series, w/ Nut
Groco Groco, Bronze Thru-Hull Fitting, Long, THXL Series, w/ Nut
From $34.56
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Groco, Straight Stainless Steel Thru-Hull Fittings, HTH-xxx-S SeriesGroco, Straight Stainless Steel Thru-Hull Fittings, HTH-xxx-S Series
Groco Groco, Straight Stainless Steel Thru-Hull Fittings, HTH-xxx-S Series
From $27.50
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Forespar Marelon Scoop Strainer Thru HullForespar Marelon Scoop Strainer Thru Hull
Forespar Products Corp. Forespar Marelon Scoop Strainer Thru Hull
From $34.50
1 review
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Bronze Extra Long Threaded Thru Hulls with Nut
Buck Algonquin / Hydrasearch Bronze Extra Long Threaded Thru Hulls with Nut
From $38.99
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Bronze Thru Hull, Flush TypeBronze Thru Hull, Flush Type
Buck Algonquin / Hydrasearch Bronze Thru Hull, Flush Type
From $28.95
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Buck Algonquin Bronze Scoop Strainers, Surface Mount
Buck Algonquin / Hydrasearch Buck Algonquin Bronze Scoop Strainers, Surface Mount
From $57.32
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Midland Metal SAE Flare Female Swivel Push-On Hose Barb Fitting
Midland Metal Mfg. Co. Midland Metal SAE Flare Female Swivel Push-On Hose Barb Fitting
From $3.35
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Groco Stainless Steel Ball Valves, IBV-S Series
Groco Groco Stainless Steel Ball Valves, IBV-S Series
From $49.14
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Groco NPT Bronze 6 Port Fuel ValveGroco NPT Bronze 6 Port Fuel Valve
Groco Groco NPT Bronze 6 Port Fuel Valve
$226.95
No reviews
Equal Elbow
Whale Water Systems Equal Elbow
$5.13
No reviews
WPYP611 Pipe Y
Whale Water Systems WPYP611 Pipe Y
$13.68
No reviews
Whale Marine Adaptor Male 1/2 in. Bsp To 15mm
Whale Water Systems Whale Marine Adaptor Male 1/2 in. Bsp To 15mm
$4.69
No reviews
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Sea-Dog Snap Handle Drain Plug, Stainless SteelSea-Dog Snap Handle Drain Plug, Stainless Steel
Sea-Dog Sea-Dog Snap Handle Drain Plug, Stainless Steel
From $7.55 $7.95
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Moeller Transom Drain Replacement Plugs (5 Per Package)
Moeller Moeller Transom Drain Replacement Plugs (5 Per Package)
$13.75
2 reviews
316 Stainless Steel 1/2" Replacement Plug
Whitecap Industries 316 Stainless Steel 1/2" Replacement Plug
$11.75
No reviews
Forespar Sta Plug for Boat Leak Emergencies
Forespar Products Corp. Forespar Sta-Plug Soft Emergency Plug
$29.33
1 review
Banjo RN150-125 Reducing 1-1/2" x 1-1/4" Poly Nipple
Banjo Banjo RN150-125 Reducing 1-1/2" x 1-1/4" Poly Nipple
$4.36
1 review
Banjo RN150-100 Reducing 1-1/2" x 1" Poly Nipple
Banjo Banjo RN150-100 Reducing 1-1/2" x 1" Poly Nipple
$4.16
No reviews
Perko Bronze Pipe to Hose Adapter
Perko Perko Bronze Pipe to Hose Adapter
From $14.22
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Midland Metal Nylon Branch Tee Fitting
Midland Metal Mfg. Co. Midland Metal Nylon Branch Tee Fitting
From $1.54
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Forespar Tailpipes/Hose AdaptersForespar Tailpipes/Hose Adapters
Forespar Products Corp. Forespar Tailpipes/Hose Adapters
From $3.65
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Forespar Female Threaded Hose Adapters
Forespar Products Corp. Forespar Female Threaded Hose Adapters
From $7.21
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