Johnson Pump Johnson Clutch Pump El Mag 12VSuitable for bilge and washdown, you have pumping power on demand by the push of a button. With an electro magnetic clutch you will have pumping power whenever needed, at a push of a button, without being at the pump. Wearing parts are easily replaceable and service kits are available for all standard models. Has a bronze body and a connection for a vacuum switch. The shaft is stainless steel and is mounted with permanently lubricated double ball