521218 | 521593 | Pentair Load Center SCG Surge Board PCBA For EasyTouch and IntelliTouch o ring for Pentair Sta-Rite System 3 Filters S8M500 chlorine lacks the direct capability

chlorine lacks the direct capability to eliminate phosphates

ensuring precise compatibility and reliable sealing performance

and Wanda the Whale automatic cleaner lines

Maintains Heating System Efficiency: Helps preserve accurate heating cycles and consistent system performance for long-term reliability

water leaking from valve top check air relief seal

521218 | 521593 | Pentair Load Center SCG Surge Board PCBA For EasyTouch and IntelliTouch o ring for Pentair Sta-Rite System 3 Filters S8M500 chlorine lacks the direct capabilityThe Pentair 521218 Load Center SCG Surge Board PCBA, formerly 521593, is a genuine OEM replacement designed for IntelliChlor, IntelliTouch, and EasyTouch automation systems. This surge board plays a critical role in protecting control systems from damaging power surges and voltage fluctuations. Built with advanced circuitry, it ensures stable operation and helps extend the lifespan of connected pool and spa automation components. Constructed from high