Pentair EasyTouch UOC Motherboard 520657 (Pool and Spa) Dolphin M400 water-resistant PCB and sealed assembly

water-resistant PCB and sealed assembly — designed to withstand underwater use and pool chemistry

A built-in Langelier Saturation Index calculator lets you know when your pool water is in or out of balance

Equipment pad upgrades

Dolphin 3001

and protects your pool cleaner’s internals for longer life

Pentair EasyTouch UOC Motherboard 520657 (Pool and Spa) Dolphin M400 water-resistant PCB and sealed assemblyPentair EasyTouch UOC Motherboard 520657 EasyTouch Control System UOC Motherboard with 8 Aux Circuits for the following Pentair Systems: EasyTouch Pool and Spa Combination Systems (dual bodies of water with one set of equipment) Pentair 520657