Balboa GS 100 spa control system - control box only - spare partSuits 1 x 2 speed pump, ozone and light ONLYThis system is limited in application and really only suits spas with low powered 1hp or 1.5hp 2 speed pumps - well suited to replacing spa packs in some Hot Spring Spas utilising a 2 speed pump (without circ pump) as they have no air blower.Suits other limited applications also.*NB this pack suits a 2 speed pump ONLY. It will NOT control an air blower or a single speed pump. Therefore its applications are very limited to spas fitted without an air injection system and must have a 2 speed pump.Electrical ratings: 240v, 50Hz 3.0kw heaterLow current (heating with low speed only) this unit can connect to a 15A power supplyHigh current (heating on low and high speed) this unit requires 20A-25A power supply depending on pump rating.Limitations:1. Heater is available separately - 1.5" and 2" versions 2kw and 3kw.2. Minimum power supply required - 15A3. Will NOT run single speed pumps, circulation pumps or blower. Will run a single two speed pump only