The Filbur FC-9880 is a compatible replacement for the following filter grids:
The FC-9880 Sta-Rite System 3 S7D75 Pool & Spa Filter is a replacement filter grid perfect for applications requiring a Diatomaceous Earth filter. This compatible Sta-Rite offset port for the System 3 S7D75 is built with a reinforced center core for durability and strength. This spa filter also includes built-in seams that are welded to prevent them from fraying and heavy duty, chemical resistant string. In addition, this pool filter features long lasting proprietary grid cloth.
FC-9880 Sta-Rite System 3 S7D75 Pool & Spa Filter specifications: