Liner and prefabricated pool - Wall bushings Wall conduits in ABS Wall conduit with smooth Ø 63 mm rear connection and smooth Ø 50 mm inner wall. 2" front female thread for for nozzles with 2" male thread Range of 300 mm long conduits for Ø 2" inlets and Multiflow that can be cut to different lengths, depending on the thickness of the pool wall. Made of ABS. The ribs of the end plates have holes for fitting the wall conduit to the pool structure, which makes assembly straightforward. The inlet's end plate ensures that it fits flush to the pool wall so that the liner remains flat against the wall and does not swell. This system is aesthetically pleasing as only the face plate can be seen.