1)Product name: PVC pipe fittings 2)Sizes: From 1/2" to 4" 3) ... Coupling ,Socket, Cap , Tee , Adapter , Elbow , Reducer, Union , Plug , Pipe Clip , Valve , Plastic Tap and MouldSize1/2"– 4" 20-110mmStandardASTM ... strength3) Convenient and reliable installation, low construction expenses4) Excellent heat-insulation property from minimum thermal conductivity5) Lightweight, convenient to transport ...