OPW FC 10BFP 5726 1 1 2" Emergency Shut Off Valve, W Double Poppet, Female Threaded Top (Outlet)10 Series Gauge Low Volume Applications 3 digit counter registers CIM 50002 Low Volume Applications 3 digit counter registers flow rates between 5 20 GPM and up to 99 a Pressure Relief Kit must be installed at the pump outlet to prevent over pressurization and rupture of the pump or hose All OPW 10 Emergency Shut Off Valves meet requirements of UL STANDARD 842 The valve base is secured to the stabilizer bar using a three point boss mount system or a U Bolt Kit (not included) 10UBK 015 (1 1 2") and 10URK0200 (2 sold separately)