... 1.OEM 2.Instead of sand filter (Factory)Good Quality Wall-mounted Pool Filtration System, Pool Filter,Water FilterA.Filtration including: 1 ... 705 x 1230mm C.Advantage:1) No need pipe, Easy to install2) More funtions( filter, spa, illumination, impact bath, cleaning, ... UV sureface shell7) No need machine house, save money8) Change to traditional filter design (replace sand filter) D.Ideal for:flow ...