520657 | Pentair UOC Motherboard For EasyTouch Systems | 8 Auxiliary 357151 lid This valve automatically adjusts water

This valve automatically adjusts water flow to match changing pool conditions

Reliable and Durable: A dependable choice for maintaining the safe operation of your pool or spa heater

Pentair Cleaner Models: Legend and Platinum

Could a crack in the 178560 cause water loss around the base

and chemical exposure in demanding pool environments

520657 | Pentair UOC Motherboard For EasyTouch Systems | 8 Auxiliary 357151 lid This valve automatically adjusts waterThe Pentair UOC Motherboard 520657 is an OEM replacement part built for EasyTouch pool and spa control systems. Acting as the central controller, this board manages up to eight auxiliary functions, allowing users to automate essential operations such as lighting, water features, filtration cycles, and more. By restoring full automation, it helps maintain both convenience and efficiency across pool and spa systems. Compatible with EasyTouch, PL4, and