SHURflo's New fresh water pump design was created with a unique one-piece diaphragm and internal by-pass, assuring long life and top performance in all plumbing systems. Designed as the next legendary pump to exceed the expectations of our customers, the Revolution Pump is built for high flow demand, low noise and no rapid cycling. SHURflos quality reputation has been built on the reliability and dependability of every pump we build. Replaces SHURFLO Whisper King. Includes fittings. Features: Thermally Protected Self Priming Built-in check valve Easy Installation | Shurflo 4028 Water Pump