Swimables 42002-0029Z / 472610Z Membrane Pad Replacement for All Pentair Mastertemp and Starite Pool Heater - Designed to be plugged into Pentair Mastertemp 400 Control Board

How to Test: If your Pentair pool heater control board is incorrectly adjusting the temperature or the buttons on the Pentair mastertemp control board pad don't work, the pad needs...