Pentair Sta-Rite System:3 21" S7S50 Sand Conversion Kit | 25021-2021 Pentair 1" IntelliVibe Nano Pool/Spa Lights Inspect the O-ring and lock-ring

Inspect the O-ring and lock-ring for wear during each cleaning

Constructed for resistance to typical pool chemical exposure

Easy to Install: Designed for a quick and hassle-free installation to get your pool back to optimal function

offering both functionality and a modern aesthetic

Pressure relief valve assembly for pool and spa systems

Pentair Sta-Rite System:3 21" S7S50 Sand Conversion Kit | 25021-2021 Pentair 1" IntelliVibe Nano Pool/Spa Lights Inspect the O-ring and lock-ringPentair Sta Rite System: 3 21" S7S50 Sand Conversion Kit 25021 2021 OEM Pentair Sta Rite 21" sand conversion kit for System: 3 SS Series S7S50 filters. Includes O ring, drain, tank fitting, and 1 1 2" NPT plug. Features Genuine Pentair replacement conversion kit for Sta Rite System: 3 SS Series filters. Built specifically for 21" model S7S50 applications. Includes O ring, sand removal 1 1 2" NPT plug, drain, and tank fitting. Direct OEM replacement