(Standard) series topside control panel. It is a 6-button, oval-shaped LCD keypad designed for use with Balboa VS/GS Control Systems that have an "SZ" or "DZ" designation, specifically the VS501SZ, VS510SZ, VS511SZ, and VS515SZ.
This part uses an 8-pin "phone jack" style (RJ45) connector. Below is a "laundry list" of spa manufacturers that have used the 54548 topside or compatible VS/GS SZ-series systems:
Aquaterra Spas
Artesian Spas
Cal Spas
Coast Spas
Coleman Spas
Dynasty Spas
Emerald Spas
Fantasy Spas
Fitness Spas
Freeflow Spas
GO Spas
Great Lakes Spas
Lifesmart Spas
Mark III
Marquis Spas
Master Spas
Pinnacle Spas
Platinum Spas
Premium Leisure
QCA Spas
Sundance Spas
Superior Spas
Important Technical Notes:
Standard Button Layout: The standard 6-button configuration for part 54548 is Jets 1, Jets 2, Light on the left side, and Warm, Mode, Cool on the right side.
Non-Interchangeable: This model is visually similar to the VL620S but is not interchangeable due to internal wiring and software differences.
Retrofit Kits: Because it is a "standard" Balboa part, it is also frequently included in Balboa Retrofit Spa Packs used to repair or upgrade older hot tubs from various brands.
