This unique switch prevents your holding tank discharge pump from operating when its seacock is in the closed position. The switch has a waterproof covering and 316 stainless steel bracket to resist the corrosive effects of saltwater. An optional indicator light signals "Check Seacock" when the discharge pump is activated and seacock is closed.
Includes switch, mounting bracket and 30-amp control relay
Switch is ignition prevention tested for engine room installation
Bracket matches mounting holes for 1-1/2" Conbraco and Groco flanged seacock valves
Designed to operate with a SaniPump discharge pump