Description BP100/TP500, 4.0Kw, Retro-Fit Specifications Brand: Balboa Water Group Components Supported: Pump1 + Blower or Pump2 Heater Version: Flow-Thru Heater Wattage: 4.0kW System Voltage: 115/230V Topside Included?: TP500 50-BP1-500-40