The Filbur FC-9875 is a compatible replacement for the following filter grids:
The FC-9875 Sta-Rite System 3 S7D75 Pool & Spa Filter is a replacement filter grid ideal for Diatomaceous Earth filter applications. This compatible Sta-Rite offset port for System 3 S7D75 features a durable reinforced center core. This pool filter also boasts seams that are welded to prevent fraying and heavy duty, chemical resistant string. In addition, this spa filter includes proprietary grid cloth that is long lasting.
FC-9875 Sta-Rite System 3 S7D75 Pool & Spa Filter specifications: