... valve, ball valve, PVC valve, check valve, water valve) description:1)Material: Good quality, new material of PVC2)Size: 1/2'',3/4'',1'',1--1/2'',2'',3'',3--1/2'',4 ... ''3)Many color available you can choice, for example, grey, blue, white and etc.4 ... .3)The fluid resistance is small.4)No vibration, and no noise.5)Each valve is pressure tested at the end after ...