Filbur Rectangular Diatomaceous Earth [DE] Grid [18" x 12-7/16"] [Center Port] (FC-9830) pumpparts while the Ultima platform preserves

while the Ultima platform preserves the original pump-family match

performance issues often appear gradually

owners often notice the spa feeling less reliable overall

Single-port flow-path assembly for compatible Balboa Magnassage jets

Filbur Rectangular Diatomaceous Earth [DE] Grid [18" x 12-7/16"] [Center Port] (FC-9830) pumpparts while the Ultima platform preservesA rectangular DE grid helps create the working filtration surface inside a compatible diatomaceous earth filter assembly, and this Filbur FC 9830 grid is designed in an 18 inch by 12 7 16 inch format with a center port for matching applications. When a DE grid becomes torn, worn, or less effective, the filter can lose the dependable support it should provide during operation. The 18 inch by 12 7 16 inch dimensions, center port layout, and FC 9830