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.

Attwood Thru-Hull 90° Connector, 3/4", Black, Bagged, 3880-1
Attwood Attwood Thru-Hull 90° Connector, 3/4", Black, Bagged, 3880-1
$29.05
No reviews
3/4" Double-Ended Thru-Hull Connector
Attwood 3/4" Double-Ended Thru-Hull Connector
$16.10
No reviews
Sea-Dog, Garboard Drain & PlugSea-Dog, Garboard Drain & Plug
Sea-Dog Sea-Dog, Garboard Drain & Plug
$15.20
No reviews
3" NPS NPT Combo Flush Thru Hull, FTH-3000-W3" NPS NPT Combo Flush Thru Hull, FTH-3000-W
Groco 3" NPS NPT Combo Flush Thru Hull, FTH-3000-W
$393.95
No reviews
Attwood 90° Thru-Hull Fitting
Attwood Attwood 90° Thru-Hull Fitting
$17.69
1 review
Polypropylene Durable Thru-Hull Connector Fitting, White, 3874-3
Attwood Polypropylene Durable Thru-Hull Connector Fitting, White, 3874-3
$9.76
No reviews
Forespar 906022 Barbed Thru Hull, 1/2"
Forespar Products Corp. Forespar 906022 Barbed Thru Hull, 1/2"
$17.96
No reviews
Sea-Dog 1-1/2" Thru-HullSea-Dog 1-1/2" Thru-Hull
Sea-Dog Sea-Dog 1-1/2" Thru-Hull
$10.50
1 review
Groco, Thru Hull Tool, THT-530
Groco Groco, Thru Hull Tool, THT-530
$171.95
No reviews
Legend Valve One-Piece Conventional Port Stainless Steel Valve, T-710Legend Valve One-Piece Conventional Port Stainless Steel Valve, T-710
Legend Valve Legend Valve One-Piece Conventional Port Stainless Steel Valve, T-710
From $36.29
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Midland Metals Hex Head Plug
Midland Metal Mfg. Co. Midland Metals Hex Head Plug
From $1.65
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Midland Metals Solid Square Head Plugs
Midland Metal Mfg. Co. Midland Metals Solid Square Head Plugs
From $3.05
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Midland Metal 1/4-28 Taper Thread Short Ball Check
Midland Metal Mfg. Co. Midland Metal 1/4-28 Taper Thread Short Ball Check
From $0.50
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Mildand Metal Inverted Flare Female Adapter Brass Fittings
Midland Metal Mfg. Co. Mildand Metal Inverted Flare Female Adapter Brass Fittings
From $5.26
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Midland Metal Nylon Couplings
Midland Metal Mfg. Co. Midland Metal Nylon Couplings
From $5.96
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Midland Metal Nylon Bushings
Midland Metal Mfg. Co. Midland Metal Nylon Bushings
From $1.83
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Midland Brass Forged 90° Male Elbow Fitting
Midland Metal Mfg. Co. Midland Brass Forged 90° Male Elbow Fitting
From $3.56
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Midland Brass Cored Hex Plug
Midland Metal Mfg. Co. Midland Brass Cored Hex Plug
From $3.40
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Midland Brass Extender Adapter
Midland Metal Mfg. Co. Midland Brass Extender Adapter
From $4.54
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Midland Female Pipe x Female Pipe Fitting
Midland Metal Mfg. Co. Midland Female Pipe x Female Pipe Fitting
From $7.75
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Midland Brass Reducing Coupling Fitting
Midland Metal Mfg. Co. Midland Brass Reducing Coupling Fitting
From $2.75
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Midland Brass Long Nipple
Midland Metal Mfg. Co. Midland Brass Long Nipple
From $1.68
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Midland Brass Close Nipple
Midland Metal Mfg. Co. Midland Brass Close Nipple
From $0.65
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Midland Brass Hex Bushing
Midland Metal Mfg. Co. Midland Brass Hex Bushing
From $1.32
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