1-1/2" thru hull, commonly used for bilge pump discharge hose. Made of Marelon, so they are impervious to galvanic corrosion.
Molded Marelon offers superior strength and corrosion resistance. Marelon is lightweight, corrosion and electrolysis free, ideal for thru-hull valves. Marelon is a modern material formulation of polymer composite compounds that uses resins and additives to produce an extremely strong marine-grade product that will not deteriorate like traditional bronze marine plumbing parts. All Thru-Hull Connectors must be installed with proper bedding compound. We recommend a maximum torque setting of 20 lb/ft.
• Thread type: 1-1/2" National Pipe Straight Mechanical (NPSM)
• Flange diameter: ~ 3"
• Nominal pipe size: 1-1/2"
• Actual thread size OD: 1-27/32"
• For hose size: 1-1/2"
• Actual hose barb OD: 1-17/32"
• Overall length: 3-1/2"
Caution: To be used only when mounted well above the water line where the fitting will never be below water, even when heeled.