Pentair IntelliChlor O-Ring [Qty 10] (521147) lightingbulbs 5" Spg x 2"s x

5" Spg x 2"s x 2" NPT] is a Waterway Plastics skimmer replacement part for compatible skimmer assemblies

Useful for routine maintenance

more efficient service process

Useful when the original switch is worn or erratic

Pentair IntelliChlor O-Ring [Qty 10] (521147) lightingbulbs 5" Spg x 2"s xPentair IntelliChlor O Ring [Qty 10] (521147) is a practical option for Pentair repairs where compatibility, clean fit, and dependable operation matter. This seal helps maintain watertight compression around the connected assembly and protects against pressure loss. It is especially useful for salt chlorination systems that rely on matched cells, wiring, seals, and power components to keep chlorine output consistent.. Supports compatible Pentair