1) Diameter: 1/2", 3/4", 1", 1-1/4", 1-1/2", 2" 2-1/2" 3" 4" 2) Standard: BS, ANSI, CNS,GB 3) ... ball valve, double union ball valve)Specification: 1) Diameter: 1/2", 3/4", 1", 1-1/4", 1-1/2", 2" 2-1/2" 3" 4" 6"2) Standard: BS, ANSI, CNS,GB3) With ... socket and threaded end 4) Material: High quality PVC, ABS, PP-R 5 ...