GR20S pump mounted pressure control unit for medium pressure diaphragm pumps with working pressure regulating valve, by-pass control lever and glycerine filled pressure gauge with colored dial. Two 1/2″ hose barb outlets with individual shut-offs  3.5 Lbs.

For use with AR252, AR303 and AR403 Pumps

Specifications: 1/2 NPT Inlet, 3/8″ Outlet, 3/4″ Return. Maximum 10.6 GPM, 290 PSI 140 Deg. F