Pentair Sta-Rite S7D75/S8D110/DES/DEP Center Rod (23900-0039Z) precision The “V” thread detail matters

The “V” thread detail matters because tank lid designs are not universal across all filter versions

The Waterway 218-6610 Power Storm jet diffuser is designed for compatible jet assemblies and comes in white

Lighting parts should be matched carefully to the existing fixture to help maintain fit

90 inch OD rail applications

Useful when the original valve is leaking or sticking

Pentair Sta-Rite S7D75/S8D110/DES/DEP Center Rod (23900-0039Z) precision The “V” thread detail mattersThis center rod is used inside compatible Sta Rite S7D75, S8D110, DES, and DEP filter assemblies to help secure and align internal filter components. A bent, corroded, or damaged rod can make it difficult to tighten the assembly evenly and may compromise how the grids or internal parts seat inside the tank. Replacing it helps support even clamping pressure and reliable filter operation. Supports proper internal filter alignment Helps secure DE filter