... following series: (Tee. Elbow, Coupler, Adapter, Cap, Plug, Clip, Union, Trap, Cross, Extention Joint, Junction Box)PVC-U (upvc, pvc)pipe ... Φ20~Φ250 millimeters (Tee. Elbow, Coupler, couplingP-Trap, P-Trap (with I/O), S-Trap, S-Trap (with I/O), Y-Tee, Tee In Bottle ...