12v Volt Submersible pump is designed for use with truck battery, as a back-up unit in the event of power failure or for use in remote locations were electricity is not available. Contractor 12Vdc pump weighs 28 pounds and is constructed of aluminum with a cast iron impeller. The 30 foot power cord has battery clips for easy attachment to 12 volt. Remote waterproof controller for safe, simple operation battery. Commercial duty portable pump is ideal for dewatering ditches, rental stores, manholes and caissons. Hooks up to 12V vehicle battery. O-rings keep pump internals dry. Lifetime lubricated bearings. U.S.A. 12V Contractor submersible pump alternative.