Filbur Pentair/Hayward/WW Diatomaceous Earth [DE] Grid [Partial] [18" x 9-3/4"] [36 SqFt] (FC-9430) manifolds Helps maintain steady background water

Helps maintain steady background water circulation

Supports a cleaner repair than replacing the full pump

That matters because visible jet parts contribute heavily to the perceived quality of the spa interior

Useful when original grids are damaged or worn

which matters because a heater needs to fit the flow path cleanly if the final repair is going to feel complete and service-worthy

Filbur Pentair/Hayward/WW Diatomaceous Earth [DE] Grid [Partial] [18" x 9-3/4"] [36 SqFt] (FC-9430) manifolds Helps maintain steady background waterA partial DE grid helps complete the internal filtration surface of a compatible diatomaceous earth filter assembly, and this Filbur FC 9430 grid is designed for Pentair, Hayward, and WW applications in an 18 inch by 9 3 4 inch format for 36 square foot systems. When a partial grid becomes damaged or worn, the filter can lose the even support it should provide across the grid set. The Pentair, Hayward, and WW compatibility, 18 inch by 9 3 4 inch