109242 Maax Balbox topside, MXTP600, with no overlay.
When replacing your topside control panel, always choose the new replacement Topside that matches that part number on your old topside. Do not choose a new topside panel based on appearance, some of them look very similar but may not be compatible. This Spa Side / Topside Controller is a non-returnable electronic part. It cannot be returned or exchanged and so make sure it is the correct part. All Topside sales are final.