As used on Vita Spas between 2002 and 2006 certain models
Operates either a 2 pumps system with or without a blower, with a circ and a light
Please check the photo carefully to compare with your own.
BEWARE - There is a similar version that was used pre 2002 that had the same buttons and looked very similar. It had the word Selectron and was used on models without a circ pump. This is listed seperately