Low lead brass ON/OFF terminal balancing valve for HVAC and domestic water use. Threaded F/F (ASME B1.20.1 - NPT) or solder joint ends (ASME B16.22). Tolerance on nominal Cv for fully open valve + 10% (test according to BS7350). 300 WOG (Maximum 300psi up to 160°F. Maximum 150psi at 260°F.)