High performance fresh water pump features Flow Reaction By-Pass Technology that produces smooth, low cycling, high powered flow up to 4 GPM at 55 PSI. Automatic demand design eliminates the need for an accumulator tank or complicated electronics. Built eco-friendly for efficient power use and reduction of hazardous waste. Built-in automatic thermal overload protection. Runs dry without damage. Built-in check valve prevents backflow. Dry primes to 6 vertical feet. Easily replaces Shurflo Smart Sensor pumps. 12-volt, 10 amps max. | Shurflo 4048 High-Flow Water Pump