What information do I need to provide for you to match my spa air switch? Holly July 03, 2018 23:09 Updated Follow To help us determine the type of heater you wish to source, we require the following information: A photo of the air switch or Air button? What type of switch do you have? ie; (Air button, Air switch that sits on pump or external Air switch) Related articles How do I switch to BioGuard Armour if I have been using Lithium? Comments 0 comments Article is closed for comments.