Raritan Heating Element w/Gasket - Screw-In Type - 120v [WH1A-S] Marine Hardware | Cleats or from a solar panel

or from a solar panel

5 degree Beam Angle

but it has a special sleeve for mast mounting

Cowl Opening Square: 7-1/3"

Built in shredder reduces clogs

Raritan Heating Element w/Gasket - Screw-In Type - 120v [WH1A-S] Marine Hardware | Cleats or from a solar panelHeating Element with Gasket The WH1A S is a screw in heating element that is 1250w at 120v designed to quickly and efficiently heat the water via electricity in a Raritan water heater. These elements must be installed, and the tank filled prior to applying any power or they will burn out. Raritan does offer an element that can last a bit longer if power is applied without water in the tank. Features: Includes Gasket Screw In Type 120v WARNING: This