The part number G8451 is a Balboa Water Group topside control panel (specifically the Balboa TP500S model).
This oval, 6-button panel is widely used by many different hot tub manufacturers who integrate Balboa's modern BP control systems into their spas.
Manufacturers that use or have used the Balboa TP500S (G8451) topside panel in their spas include:
Platinum Spas / Superior Spas: These brands frequently use top-of-the-line Balboa equipment in their products.
Viking Spas: This panel is a direct replacement for the Viking Spa part number 91037 TP500S.
Cal Spas: Known to incorporate various Balboa components, including TP-series panels, into their hot tubs.
Master Spas: This manufacturer utilizes a variety of Balboa control systems in many of its models.
Coast Spas: A Canadian manufacturer that often includes Balboa components in its hot tubs.
Marquis Spas: Incorporates Balboa control systems into some of their spas.
AquaTerra Spas / Life Smart Spas: Brands associated with major retailers often use the Balboa control systems.
Dream Maker Spas: Some models from this manufacturer have used Balboa control systems.
The G8451 panel is designed for use with modern Balboa BP-series control systems (e.g., BP501, BP601). An important note is that this part number is typically for the panel itself without an overlay (the graphic sticker that labels the buttons), which must be purchased separately to match the specific spa's functions.
