Marine Plumbing & Ventilation

Mounting Collar for Pro Check Sensor LPG Aluminum TankCollar set used with non-magnetic and magnetic Pro Sensors, on aluminum DOT cylinders or steel tanks. Includes pre-applied adhesive and prep materials. Note: The collar for LPG cylinders differs from the collar...

Mounting Collar for Pro Check Sensor Plastic Holding TankCollar set used with Pro Sensors on flat-bottom, non-magnetic tanks. Includes pre-applied adhesive and prep materials. Note: The collar for flat-bottom tanks differs from the collar for LPG Tanks. The LPG collar...

1-1/2" Stainless Steel Extra Long Thru-Hull Fitting w/Nut Features: Extra long NPSM / NPT combination thread #316 Stainless Steel Specifications: Hose Size: 1-1/2" Material: Stainless Steel Box Dimensions: 5"H x 6"W x 7"L WT: 2.1 lbs UPC: 742985175181

CM30P7-1 - 12V - Circulation Pump - Dia20Features: 12V, 6.9 GPM circulation pump Compact, magnetic driven centrifugal pump High flow rate with very low electrical current consumption Suitable for fresh water, ethylene glycol and salt water

Motor Group 12V for Silent Electric ToiletsJohnson Pump's 12V motor group (silent electric).

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...

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...

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...

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...

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...

MF 840 Vented Loop - 1-1/2"Installing one of our vented loops will ensure that fluids will not siphon from tank to tank. Vented loops are commonly used in the marine toilet system and engine cooling system. The simple valve system...

Sta-Plug® Mini Emergency PlugThe Sta-Plug® Mini™, Forespar's form-fitting emergency plug. A soft cone-shaped design allows it to easily fill the irregular shapes of hull impact breaches, as well as any round hole leak from a hose or through-hull. Unique edge...