Sta-Rite 25021-0200S System 3 Inner Filter Cartridge for S7M120

These replacement Sta-Rite filter cartridges are the factory original replacement filters, Sta-Rite part number 25021-0200S. These filters are constructed with thermally bonded polyurethane caps and a punched PVC pipe core that will ensure consistent water flow through your filters along with the durability you depend on.

The Sta-Rite 25021-0200S Filter Cartridge is compatible with and fits the Sta-Rite System 3 S7M120 swimming pool cartridge filter. The System 3 Filter has an inner and outer filter cartridge. The 25021-0200S filter is the Inner Cartridge and is the smaller of the two cartridges. This filter cartridge is the factory original Sta-Rite replacement filter cartridge.

To clean your filter remember these 4 simple steps; rinse, soak, rinse, dry. Rinse your filter out with a garden hose to remove any debris or dirt still attached to your filter. Next soak your filter in a filter cleaner solution overnight, then remove your filter from the solution and rinse with a garden hose. Set your filter in a sunny location and let it air dry completely. Finally reinstall your pool filter per your manufacturer's instructions.