The part number G8242 is a Balboa Water Group topside control panel (specifically the Balboa VL402 model).
This 4-button, rectangular panel is widely used by many different hot tub manufacturers who incorporate Balboa VS/GS and Duplex Digital control systems into their spas.
Manufacturers that use or have used this specific Balboa topside panel or compatible Balboa systems in their spas include:
Platinum Spas / Superior Spas: These brands frequently use Balboa equipment and parts in their hot tubs.
Cal Spas: Known for incorporating various Balboa components, including the VL series panels, into their hot tubs.
Master Spas: This manufacturer utilizes Balboa control systems in many of its models.
Coast Spas: A Canadian manufacturer that often includes Balboa components in their hot tubs.
Marquis Spas: Incorporates Balboa control systems into some of their spas.
BullFrog Spas: Uses Balboa electronics across many of their models.
Caldera Spas: Known to use Balboa components in some configurations.
Spaform: Used in models such as the Spaform SF172, Oslo, Milano, Odyssey, and Mardi Gras 3000 spas from 2002 onwards.
The G8242 panel connects via an RJ45, 8-Wire phone jack style plug and is designed for use with specific Balboa VS/GS systems ending in 'Z' (e.g., VS513Z, GS513Z). The panel typically comes without an overlay (the graphic label for the buttons), which is usually sold separately to match the spa's specific setup.
