Plastic VALVE1.material:PVC 2.Standard:ASTM,ISO,DIN,BS 3.SIZE:3/4''-8'' 4.Connect:socket end 5.Colour:white,gre Plastic VALVE1.material:PVC2.Standard:ASTM,ISO,DIN,BS3.SIZE:3/4''-8''4.Connect:socket end5.Colour:white,grey6.Type:Swing check valve(one-way&two ways) plastic valve/butterfly valve/ball valve/double union valve/pvc valve