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Technical characteristics
Perfect to replace your old electronic spa system, included all of spare parts to restore your spa. You can restore your spa with these retrofit kits.
Retrofit kit VL701S + GS504SZ
Heater BALBOA 3.0 kW 240V
With M7 sensors
Balboa Reference : 54816
The M7 (Millenium 7) control system is a patented technology by Balboa. Sensors placed inside the heater allow to continuously and correctly measure the flow and the water temperature. The systems using this technology have a superior lifespan and are more liable.
The sensors’ cables are sold separately.
Retrofit kit VL701S + GS504SZ
Heater BALBOA 3.0 kW 240V
With M7 sensors
Balboa Reference : 54816
Included :
| Can control :
|
The M7 (Millenium 7) control system is a patented technology by Balboa. Sensors placed inside the heater allow to continuously and correctly measure the flow and the water temperature. The systems using this technology have a superior lifespan and are more liable.
The sensors’ cables are sold separately.
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![]() | Embedding panel
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Pipe Connection
Delivered with the 2" (60 mm internal) output connection
You can use your old union connections. If these connectors aren't compatible with your pipe, click on the link below : Heater union connections
Compatible with
All spas with power supply : 220 - 240V
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