Ultra Fine Filter Cartridge Assy For M400/M500 - 9991427-ASSY

Ultra Fine Filter Cartridge Assy For M400/M500 M4/M5 - 9991427-ASSY

This filter are original and not after market ones (after market ones don't work, so dont waste your money)  These original filters are used for a Dolphin M400 M500 Dolphin M4 / M5 and the Dolphin M3.   They look like folded carboard and our ideal for picking up the really fine sand and silt in the pool.  If you are looking for filters for leaves we would recommend the Mesh Filters (Spring FIlters)  and not these ones.