Cartridge finder/Waterway Plastics TWM Skim Filter 25Waterway Plastics · pool filterTWM Skim Filter 25SeriesTWM Skim FilterModel25TypePool filterSame replacement partAlso fits these filtersWaterway Plastics 1 1/2-inch In-Line Filter 251 cartridge→Waterway Plastics TWM Cartridge Filter 251 cartridge→Waterway Plastics Top-Load Filter 251 cartridge→Waterway Plastics Dyna-Flo Top-Mount Skim Filter 251 cartridge→Waterway Plastics Flo-Pro Skim Filter 251 cartridge→