107858 Maax Balbox topside, VL402, with 4 button. 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.