Balboa Water Group 4kW 120/240V flo-thru Spa Heater Assembly including sensors part# 58104. This Balboa M7 replacement heater assembly is 4kw & 120/240 volts. Stainless steel heater assembly is for systems using M7 technology & heater element is rated at 4kW/240v. Heater tube measures 2" x 15" in length & includes split nuts, tailpieces & sensors.
Note: To make sure this is the correct heater for your application, please check the Balboa label on your existing heater. If you are unsure where to find the part number please contact us.