The Keys Backyard Spa Controller, OEM Part Number 53794, is an Obsolete spa controller manufactured by Balboa Instruments. This controller operates one 2 speed pump, a 12V light, and an ozone. It will be identified with the part number shown above.
If this is the controller you have, it is no longer available. However we have replacement options.
The replacement option is either one of the following:
Balboa VS 500Z 54219
SpaGuts VS 500Z 54803 with an upgrade topside and warranty