pvc true union check valve 1)size 1/2"-2" 2)quarter-turn shut off valve 3) PN16, upvc true union ball valve1.Description1)Material U-PVC2)Application water supply,water draining,farming,irrigation,aquiculture,and water treatement and other fields3)Size 1-1/2",2"(Standard: DIN,JIS,ANSI,BS OR NPT,BSPT)4)Color grey/china-white/white5) Temperature resistance water temperature from -5° to 45°6) union ...