Flojet LF122202A Marine Automatic Demand Water Pump (1.1-GPM, 35-PSI, 12-Volt, 3.5-Amp) On-demand, automatic water pump for small boats, campers, and vans Built-in pressure switch for automatic stop/start Self-priming--allows it to be mounted above tank; able to run dry Built-in thermal protector; 3/8-inch hose barb ports Supplies up to three fixtures--one or two at a time; one year warranty