pvc manual pressure regulator ball valve 1) Diameter: 1/2"~ 4" 2) Standard: BS, ANSI, CNS,GB 3)pressure:0.3~1Mpa 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,G3)pvc manual pressure regulator ball valve4) Material: High ...