This Pentair Sta-Rite pool filter cartridge kit is the OEM filter cartridge set for the System 3 S7M120 Modular Media Pool Filter. Because of its large 300 square foot filter area, the S7M120 Filter houses one smaller inner cartridge (100 square foot) and one larger outer cartridge (200 square foot). Easy to clean and simple to change out. The Filter Cartridge Kit is efficient at capturing fine debris, leaving you with clearer, cleaner pool water.

✅ GENUINE OEM PENTAIR STA-RITE - Inner and Outer Set - Sta-Rite 25021-0200S & 25022-0201S System 3 S7M120 Modular Media Set
✅ FILTER CARTRIDGE SET - Get purer, cleaner water in your spa or hot tub with the OEM Inner and Outer filter cartridges Sta-Rite 25021-0200S & 25022-0201S System 3 S7M120
✅ DIMENSIONS - Small 100 square foot pool filter cartridge (25021-0200S) measures: 25-1/4"L x 8-1/2"D, Large 200 square foot pool filter cartridge (25022-0201S) measures: 18-1/2"L x 16-1/4"D