The Pentair 191321 ST35DE grid is designed for compatible ST35DE filter applications and measures approximately 13-1/8 inches by 6-1/2 inches. This grid is one of the internal filtering elements in the assembly, and four are required for the complete set.Replacement is often needed when an original grid is torn, worn, or no longer suitable for reinstalling during filter service. Using the correct-size grid helps maintain better internal fit and can support a cleaner rebuild of the filter assembly.This OEM Pentair grid is a practical replacement option for ST35DE systems that need correctly sized internal filter elements during maintenance. OEM Pentair ST35DE grid Approximate size 13-1/8 inches by 6-1/2 inches Four required per complete assembly Useful when the original grid is worn or damaged Supports cleaner and more dependable DE filter service
![Pentair ST35DE Grid [13-1/8" x 6-1/2"] [4 Required] (191321)](https://cdn.shopify.com/s/files/1/1751/9347/products/14-110-3290_xl.jpg?v=1486194426&width=480)
![Pentair ST35DE Grid [13-1/8" x 6-1/2"] [4 Required] (191321)](https://cdn.shopify.com/s/files/1/0574/4014/1354/products/14-110-3290_xl.jpg?v=1769976138&width=480)
