PVC single union ball valve, size 1/2''-4'' PVC single union ball valve 1)diameter: 1/2",3/4",1",1-1/4",1-1/2",2",2-1/2",3",4"2) standard: BS,ANSI,DIN,JIS 3) with socket and threaded end4) material: high quality PVC5) colors: many colors available for choice6) acid & alkali resistance; withstand high water pressure, high temperature; anti-corruption; environment-friendly