The Revolution Pump by Shurflo offers a unique one-piece diaphragm and internal by-pass assuring long life and top performance in any plumbing system. Designed and constructed for high flow, low noise, no rapid cycling and high reliability, this fresh water demand pump is super quiet and can run dry without damage. Green design for reduction of hazardous waste and power consumption. Features automatic thermal overload protection and built-in check valve. 3 GPM, 12VDC, 55 PSI, 7.5 Amps. Mounts in any position.