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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Midland Metals 316 Stainless Steel Couplings
Midland Metal Mfg. Co. Midland Metals 316 Stainless Steel Couplings
From $16.76
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Midland Metals 316 Stainless Steel Tee
Midland Metal Mfg. Co. Midland Metals 316 Stainless Steel Tee
$13.74
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Midland Metals Black Steel NipplesMidland Metals Black Steel Nipples
Midland Metal Mfg. Co. Midland Metals Black Steel Nipples
From $1.75
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Midland Metals Hollow Hex Plug
Midland Metal Mfg. Co. Midland Metals Hollow Hex Plug
From $0.65
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Groco Combo Bronze Thru Hull (without Nut)Groco Combo Bronze Thru Hull (without Nut)
Groco Groco Combo Bronze Thru Hull (without Nut)
$21.90
No reviews
Groco, Stainless Steel, 90 Deg. Sweep Hose Thru Hull, HTHC-S SeriesGroco, Stainless Steel, 90 Deg. Sweep Hose Thru Hull, HTHC-S Series
Groco Groco, Stainless Steel, 90 Deg. Sweep Hose Thru Hull, HTHC-S Series
From $43.50
1 review
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Groco, Bronze Round Hull Strainer, RSC Series
Groco Groco, Bronze Round Hull Strainer, RSC Series
$63.50
No reviews
Groco, Bronze Slotted Strainer with Access Door, ASC SeriesGroco, Bronze Slotted Strainer with Access Door, ASC Series
Groco Groco, Bronze Slotted Strainer with Access Door, ASC Series
From $147.45
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Thru Hull Connections with Hose Barb
Buck Algonquin / Hydrasearch Thru Hull Connections with Hose Barb
$127.90
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Bronze Thru-Hulls
Buck Algonquin / Hydrasearch Bronze Thru-Hulls
From $20.98
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Attwood, 3879, 90 Degree Thru-Hull Connector, 1-1/8", White
Attwood Attwood, 3879, 90 Degree Thru-Hull Connector, 1-1/8", White
$16.84
1 review
Attwood, 3877, 90 Degree Thru-Hull Connector, 3/4", White
Attwood Attwood, 3877, 90 Degree Thru-Hull Connector, 3/4", White
From $9.78
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Perko 1/2" Bronze Thru-Hull Fitting, with Nut
Perko Perko 1/2" Bronze Thru-Hull Fitting, with Nut
$45.24
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2 1/2" Scoop Thru Hull with Nut
Groco 2 1/2" Scoop Thru Hull with Nut
$195.91
No reviews
Groco Aluminum Clam Shell Hull StrainerGroco Aluminum Clam Shell Hull Strainer
Groco Groco Aluminum Clam Shell Hull Strainer
$102.13
No reviews
Forespar 906062 Scoop, 1-1/4"
Forespar Products Corp. Forespar 906062 Scoop, 1-1/4"
$8.96
No reviews
Forespar Marelon 250 Series Thru-Hull, CF 250, 1-1/2"
Forespar Products Corp. Forespar Marelon 250 Series Thru-Hull, CF 250, 1-1/2"
$32.50
No reviews
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
$357.01
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

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