Balboa GS 501 Z Spa Control System Complete with VL403 touchpad - Retrofit Kit

Retrofit or replacement system. 
Suits Signature Spas Sig 10 or Sig 10L replacement system as well as many others 
Balboa GS 501 Z spa control system - complete Includes GS501Z spa pack with 3kw in-line heater, VL 403 Lite Duplex Digital Panel AMP cords for pump / blower / ozone cord adaption, light cable.  

Suits 1 x single speed pump with circulation pump, blower, ozone, light OR 2 speed pump, blower, ozone and light system. (light button not used for Sig 10 replacement or a light could be added.)