Marine Thru-Hulls & Seacocks: Bronze & Marelon

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.

Barb Fittings and Tail Pieces (84)

Drain Plugs (58)

Plumbing Fittings (142)

Thread Couplings (105)

Thru Hulls (60)

Plumbing Valves (98)

Showing 25 - 48 of 544 products

Whitecap Industries 316 Stainless Steel Thru-Hulls with Barb for 5/8" to 2" HoseSKU: 533664-5/8"-3-3/4in

From $32.95

Groco Groco Bronze Hose Thru HullSKU: 549395-5/8"

From $26.50

Forespar Products Corp. Forespar 253 Series, Marelon Hose Tailpipe/Mushroom Head Thru-Hull ConnectorsSKU: 531582-3/4"

From $18.95

Buck Algonquin / Hydrasearch Rectangular Scoop Strainer with Slide Out ScreenSKU: 531458-BRONZE-2"

From $108.96

Jabsco Jabsco In-Line Non-Return ValvesSKU: 541724-3/4"

From $28.50

Midland Metal Mfg. Co. Midland Metal SAE Flare Female Swivel Push-On Hose Barb FittingSKU: 554661-3/8"x3/8"

From $3.85

Legend Valve Legend Valve - Full-Flow Bronze Gate Valves, Model T-415, FNPTSKU: 531934-1/4"

From $13.25

Moeller Fuel Three Way Valve, Bottom Outlet, Brass 1/4" FNPT, 033302-10SKU: 241986

$52.95

Legend Valve Replacement Steel Lever Valve Handle (only) fits 1-1/2" Legend 901 Ball ValvesSKU: 468125

$5.73

Whale Water Systems Stem ElbowSKU: 84206

$5.81

Whale Water Systems Equal StraightSKU: 84202

$6.08

Sea-Dog Sea-Dog, Garboard Drain Plug, Replacement Plug OnlySKU: 35493

$8.25

Groco Groco, Bronze Straight Tail Piece, TP SeriesSKU: 531628-3/4"

From $55.01

Buck Algonquin / Hydrasearch Buck Algonquin Bronze Pipe to Hose Reducing AdaptersSKU: 531459-1/2"-5/8"

From $13.48

Perko Perko Thru-Hull Connection for Use with HoseSKU: 543490-3/4"

From $7.25

Perko Perko, Thru Hull Connections, for Hoses, Plastic, Wide FlangeSKU: 532146-1/2"-Bulk

From $4.47

Groco Groco, Bronze Slotted Scoop Strainer with Ring, SC SeriesSKU: 531609-1"

From $53.50

Forespar Products Corp. Forespar Marelon Scoop Strainer Thru HullSKU: 531573-3/4"

From $34.50

Groco Groco Perforated Hull Strainer with Access DoorSKU: 219510

$255.95

Midland Metal Mfg. Co. Midland Metal Bronze Reducing CouplingsSKU: 554684-2"x1"

From $5.50

Midland Metal Mfg. Co. Midland Metal Female 37° JIC Flare Swivel Brass FittingSKU: 554662-1/4"

From $3.92

Whale Water Systems Adapter 1/2" BSPSKU: 84208

$5.81

Whale Water Systems Equal TeeSKU: 84200

$7.34

Whale Water Systems Whale Marine Adaptor Male 1/2 in. Bsp To 15mmSKU: 233115

$4.69

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