With flow reaction technology, Shurflo®' High Flow fresh water pump has a unique one-piece diaphragm and internal by-pass to assure smooth flow, long life and top performance in any plumbing system. Designed and built for high flow, low noise, smooth flow with no rapid cycling and Shurflo® reliability, this fresh water demand pump is quiet and can run dry without damage. Mounts in any position. This pump is designed to replace both the 4900 and 5900 Smart Sensor series products.• Built-In Check Valve Prevents Back Flow• Item#: 4048-153-A75• Dimensions: 10.3 x 4.9 X 4.8 [260 x 125 x 122mm]• Voltage: 12 VDC• Flow Rate: 4.0 GPM [15 LPM]• AMPS (Max): 10• Shut-Off Pressure: 55 PSI [3.8 BAR] Smooth, High Powered FlowRuns Dry Thermally Protected Self-Priming to 6 Vertical Feet Internal Bypass-Low Cycling, Product Technical Data Sheet | Shurflo 4048 High Flow Fresh Pump