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BALBOA INSTRUMENTS
Ref : A-000000-04001

Retrofit kit VL403 + GS501Z

Within 30 days
600,00 €
506,86 £
Delivery Worldwide delivery
  • 100% compatible parts
    100% compatible parts

  • Warranty - 2 years
    Warranty - 2 years

Our technical team is at your disposal

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 VL403 + GS501Z
Heater BALBOA 3.0 kW 240V
With M7 sensors
Balboa Reference : 54813


Included :
  • GS501Z Control Box + Heater 3kW M7
  • Panel VL403
  • 5 AMP cable for 1-speed pump / Blower / Aux / Ozone
  • 1 AMP cable for 2 speed pump
  • 1 BALBOA Light

Can control :

  • 1 circ pump
  • 1 2-speed pump
  • 1 blower or one 1-speed pump
  • 1 support balboa ozone
  • 1 heater Balboa 3Kw M7
  • 1 Aux 220/240V


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 VL403 Schema

Clavier Vl403
Embedding panel
  • Length : 135mm
  • Width : 35mm

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

Equivalent products

8.6/10

Based on 3 reviews

Anonymous A.

bon produit sauf gros probleme pas de notice et pas acces a la notice sur votre site .... obligé d'aller sur d'autres sites pour avoir l'installation et le fonctionnement .... dommage

Anonymous A.

manque la notice à par cela nickel

Anonymous A.

très bon techniciens avec des conseils à la perfection

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