1) Diameter: 1/2", 3/4", 1", 1-1/4", 1-1/ ... PVC-U (upvc, pvc)/PP-R (ppr)ball valve series. (compact ball valve, double union ball valve)Specification: 1) Diameter: 1/2", 3/4", 1", 1-1 ... will own a good chance! Cooperation means benefit! UPVC thread Ball Valve,1/2"-2"