Made of white ABS, the inlets adapt to any kind of pool. The return inlets return filtered, treated water to the pool. They include the multi-flow system, which allows the diameter, and therefore the flow rate of the water through the inlets, to be selected. The suction inlets are used to connect the pool cleaner. The bottom inlets are placed in the floor of the pool so that they return water at floor level. They prevent dirt from settling by carrying it towards the surface. MULTIFLOW SYSTEM The eyeball has been marked with a series of “knock-outs” at 14, 20, and 25 mm, enabling the required flow to be selected at the time of installation. Recommended max flow 4 m/sec., complies with EN 13451-1: Ø 14 mm = >2.2 m3/h, Ø 20 mm = 4,5 m3/h, Ø 25 mm = 7 m3/h 2″ external thread, Ø 50 mm. Made in white ABS. Can be installed with wall conduits: 15658-15659. Grille slots are < 8 mm. Complies with EN 13451-1.