Filbur Pentair/Hayward/WW Diatomaceous Earth [DE] Grid [Partial] [18" x 9-3/4"] [36 SqFt] (FC-9430) manifolds A properly selected replacement helps

A properly selected replacement helps preserve the intended hold and serviceability of the assembly instead of forcing a compromise that only partly fits

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

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

When the wet end begins to wear out

Retrofit design

Filbur Pentair/Hayward/WW Diatomaceous Earth [DE] Grid [Partial] [18" x 9-3/4"] [36 SqFt] (FC-9430) manifolds A properly selected replacement helpsA 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