The Filbur FC-9890 is a compatible replacement for the following filter grids:
The Filbur FC-9890 Swimquip Pool & Spa Filter is a compatible replacement Diatomaceous Earth filter grid. This compatible Swimquip offset port measures 17.75 inches in width and is constructed with a reinforced center for strength and durability. This Filbur pool filter is manufactured with seams that are very strong and chemical resistant, and specially welded to prevent fraying.
Filbur FC-9890 Swimquip Pool & Spa Filter specifications: