Pentair ST35DE Grid [13-1/8" x 6-1/2"] [4 Required] (191321) delozone Complete retrofit control system for

Complete retrofit control system for compatible Balboa VS510SZ and BP7 spa applications

0 HP rating

Reliable circulation motors ensure consistent water movement

Supports cleaner and more dependable plumbing configuration

this filter cartridge helps support cleaner water and more dependable ongoing filtration performance

Pentair ST35DE Grid [13-1/8" x 6-1/2"] [4 Required] (191321) delozone Complete retrofit control system forThe 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