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Marine Plumbing & Ventilation - Fittings

Quality fittings for secure connections in your boat’s plumbing and ventilation systems.

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  • Forespar Marelon Full-Flow Seacock 1-1/2" Mushroom Through-Hull [904046ABYC]
    Forespar Performance Products
    Forespar Marelon Full-Flow Seacock 1-1/2" Mushroom Through-Hull [904046ABYC]
    Marelon Full-Flow Seacock & 1-1/2" Mushroom Through-HullThis integrated 2-part system comes complete with a Marelon® valve and properly matched mushroom head thru-hull with super strong “buttress” type threading. This new package is designed to eliminate valve and thru-hull thread style mismatches and associated cross-threading...
    $133.99
    $133.99
  • Forespar Marelon Full-Flow Seacock 3/4" Mushroom Through-Hull [904043ABYC]
    Forespar Performance Products
    Forespar Marelon Full-Flow Seacock 3/4" Mushroom Through-Hull [904043ABYC]
    Marelon Full-Flow Seacock & 3/4" Mushroom Through-HullThis integrated 2-part system comes complete with a Marelon® valve and properly matched mushroom head thru-hull with super strong “buttress” type threading. This new package is designed to eliminate valve and thru-hull thread style mismatches and associated cross-threading...
    $90.99
    $90.99
  • Forespar Marelon Full-Flow Seacock 1-1/4" Mushroom Through-Hull [904045ABYC]
    Forespar Performance Products
    Forespar Marelon Full-Flow Seacock 1-1/4" Mushroom Through-Hull [904045ABYC]
    Marelon Full-Flow Seacock & 1-1/4" Mushroom Through-HullThis integrated 2-part system comes complete with a Marelon® valve and properly matched mushroom head thru-hull with super strong “buttress” type threading. This new package is designed to eliminate valve and thru-hull thread style mismatches and associated cross-threading...
    $130.99
    $130.99
  • GROCO Bronze Pipe Nipple - 3" NPT [PN-3000]
    GROCO
    GROCO Bronze Pipe Nipple - 3" NPT [PN-3000]
    Bronze Pipe Nipple - 3" NPT Features: Cast-in wrench flat simplifies installation and removal NPT x NPT Connection C83600 Bronze   Full flow   Note-C83600 bronze fittings are not in compliance with NSF-61 and therefore are not intended for use in potable water systems. Specifications:...
    $92.99
    $92.99
  • GROCO 1" Bronze Flanged Full Flow Seacock [BV-1000]
    GROCO
    GROCO 1" Bronze Flanged Full Flow Seacock [BV-1000]
    1" Bronze Flanged Full Flow SeacockFeatures: 1-1/4" sizes and larger include one grease zerk fitting for lubrication (use only with the valve in the open position), and one drain plug. The zerk can also be used for draining. Tri-flange base and mount hole pattern...
    $301.99
    $418.00
    $301.99
  • Attwood Stainless Steel Garboard Drain Plug - 7/8" Diameter [7557-7]
    Attwood Marine
    Attwood Stainless Steel Garboard Drain Plug - 7/8" Diameter [7557-7]
    Stainless Steel Garboard Drain Plug - 7/8" DiameterThe Garboard Drain Plug is a threaded removable plug, which has a retention system that keeps the plug from getting lost. Features: High-polished #316 stainless steel reduces corrosion Large 7/8" (27mm) hole for servicing stern drives *Gasket not...
    $33.99
    $37.99
    $33.99
  • GROCO 2-1/2" Bronze Tri-Flanged Ball Valve/Seacock [FBV-2500]GROCO 2-1/2" Bronze Tri-Flanged Ball Valve/Seacock [FBV-2500]
    GROCO
    GROCO 2-1/2" Bronze Tri-Flanged Ball Valve/Seacock [FBV-2500]
    2-1/2" Bronze Tri-Flanged Ball Valve/SeacockFeatures: 1-1/4" sizes and larger include one grease zerk fitting for lubrication (use only with the valve in the open position), and one drain plug The zerk can also be used for draining The field reversible handle allows you to...
    $408.99
    $408.99
  • GROCO Bronze Round Hull Strainer w/Access Door f/Up To 1" Thru-Hull [RSC-1000]
    GROCO
    GROCO Bronze Round Hull Strainer w/Access Door f/Up To 1" Thru-Hull [RSC-1000]
    Bronze Round Hull Strainer with Access Door for Up To 1" Thru-HullFeatures: Patented access door design allows easy access to Thru Hulls. C84400 bronze body and door. Cast filter holes. Designed for systems where forced flow is not needed or wanted. Specifications: Max T-Hull:...
    $65.99
    $84.00
    $65.99
  • GROCO 3/4" NPT x 3/4" ID Stainless Steel Pipe to Hose Straight Fitting [PTH-750-S]
    GROCO
    GROCO 3/4" NPT x 3/4" ID Stainless Steel Pipe to Hose Straight Fitting [PTH-750-S]
    3/4" NPT x 3/4" ID Stainless Steel Pipe to Hose Straight Fitting Features: Male NPT x Hose connection #316 Stainless Steel Sizes from 1/2" to 3" Standard Flow NSF-61 compliant Suitable for use in potable water systems Specifications: Construction: Stainless Steel Box Dimensions: 3"H x...
    $14.99
    $17.00
    $14.99
  • Whitecap C.P. Brass Outlet 2-3/4" Base 1" Depth [P-2454C]
    Whitecap
    Whitecap C.P. Brass Outlet 2-3/4" Base 1" Depth [P-2454C]
    Desription - C.P. Brass 1/2" FIPT x 3/4" GHT outlet Base diameter - 2-3/4" Depth - 1" Fastener - #6 (3)WARNING: This product can expose you to chemicals including LEAD which is known to the State of California to cause cancer, birth defects or...
    $31.99
    $31.99
  • Perko Spare Gas Cap w/O-Ring & Cable [1270DPG99A]
    Perko
    Perko Spare Gas Cap w/O-Ring & Cable [1270DPG99A]
    Spare Gas Cap w/O-Ring & CableBlack polymer gas cap has a slot between the holes.
    $23.99
    $23.99
  • Perko Gas Tank Vent w/Splash Guard - Chrome Plated Zinc - " Hose [0506DP4CHR]
    Perko
    Perko Gas Tank Vent w/Splash Guard - Chrome Plated Zinc - " Hose [0506DP4CHR]
    Gas Tank Vent Chrome Plated Zinc Alloy with Black Polymer Splash Guard Removable 30 Mesh Stainless Steel Wire Screen Flame Arrestor - for use with fuel applications Hose Size: 5/8" Max Hull Thickness: 3/4"
    $20.99
    $20.99
  • Perko Garboard Drain & Drain Plug Assy Cast Bronze/Brass MADE IN THE USA [0714DP1PLB]
    Perko
    Perko Garboard Drain & Drain Plug Assy Cast Bronze/Brass MADE IN THE USA [0714DP1PLB]
    Perko Garboard Drain & Drain Plug Assy Cast Bronze/BrassCast bronze flange with brass plug. Technical Information: Pipe Size Inches: 1/2 O.D. Flange Inches: 2 Model Number: 0714DP1PLB Screw Size: 8 Ship Weight: 1.6/12.9 lbs. MADE IN THE USA
    $32.99
    $32.99
  • Beckson 4" x 14" Port Gasket [GK-414]
    Beckson Marine
    Beckson 4" x 14" Port Gasket [GK-414]
    4" x 14" Port GasketFeatures: Gasket for all PO414 Series Ports Gasket only
    $14.99
    $17.40
    $14.99
  • GROCO 3/4" Bronze In-Line Check Valve [CV-75]
    GROCO
    GROCO 3/4" Bronze In-Line Check Valve [CV-75]
    3/4" Bronze In-Line Check ValveFeatures: C83600 cast bronze construction NPT threaded ports 1/2" - 2" sizes Suitable for use with diesel fuel or gasoline Specifications: Construction: Bronze Box Dimensions: 3"H x 3"W x 4"L WT: 0.55 lbs UPC: 742985145948
    $28.99
    $28.99
  • GROCO 1" NPT x 1" ID Bronze Pipe to Hose Straight Fitting [PTH-1000]
    GROCO
    GROCO 1" NPT x 1" ID Bronze Pipe to Hose Straight Fitting [PTH-1000]
    1" NPT x 1" ID Bronze Pipe to Hose Straight FittingFeatures: Male NPT x Hose connection C83600 Bronze Sizes from 1/2" to 5" Standard Flow UL Listed 647B Note- C83600 bronze fittings are not in compliance with NSF-61 and therefore are not intended for use...
    $11.99
    $11.99
  • Dometic O-Ring S/T Pump Kit [385310151]
    Dometic
    Dometic O-Ring S/T Pump Kit [385310151]
    O-Ring S/T Pump KitThis set of 2 "O" rings will fit both S and T pumps that have 8 screws connecting the top and bottom together. *Sold as a PairWARNING: This product can expose you to chemicals including ARSENIC which is known to the...
    $28.99
    $28.99
  • Perko Flush Pro Valve - 1-1/4" [0456DP7]
    Perko
    Perko Flush Pro Valve - 1-1/4" [0456DP7]
    Flush Pro Valve - 1-1/4"Finally! Freshwater flushing of your inboard is as simple as connecting a garden hose.Features: Polymer Stainless Steel Spring Flush your boat engine safely and easily Transparent body allows for visual inspection of water flow Durable check valve system activated by...
    $130.99
    $130.99
  • Perko Flush Pro Valve Kit - 1-1/4" [0457DP7]
    Perko
    Perko Flush Pro Valve Kit - 1-1/4" [0457DP7]
    Flush Pro Valve Kit - 1-1/4"Finally! Freshwater flushing of your inboard is as simple as connecting a garden hose.Features: Polymer Stainless Steel Spring Flush your boat engine safely and easily Transparent body allows for visual inspection of water flow Durable check valve system activated...
    $210.99
    $210.99
  • GROCO 2"" NPT x 2" ID Stainless Steel Pipe to Hose Straight Fitting [PTH-2000-S]
    GROCO
    GROCO 2"" NPT x 2" ID Stainless Steel Pipe to Hose Straight Fitting [PTH-2000-S]
    2"" NPT x 2" ID Stainless Steel Pipe to Hose Straight Fitting Features: Male NPT x Hose connection #316 Stainless Steel Sizes from 1/2" to 3" Standard Flow NSF-61 compliant Suitable for use in potable water systems Specifications: Construction: Stainless Steel Box Dimensions: 3"H x...
    $48.99
    $63.00
    $48.99

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