Main Control board with Speed control knob Air Scrubbers MCB Air Scrubber OLD

Main Control board with Speed control knob - Air Scrubbers - MCB - Air Scrubber OLD. This is compatible with the listed product below. CleanShield HEPA 550 PureAiro Pro & Max 770 PureAiro Pro & Max 870 PureAiro Pro & Max 970 Note: Our air scrubber main control board is available in several versions. To ensure compatibility with your device, please verify the version of your main control board before purchasing. For easy identification, we've provided a detailed illustration below.- Main Control board with Speed control knob - Air Scrubbers - MCB - Air Scrubber OLD.