Balboa 4.0 kW [15" x 2"] FloThru Heater Assembly (58111) aosmith 2" MBT connection style

2" MBT connection style

this transformer helps support dependable low-voltage lighting operation

Helps restore the skimmer’s equalizer function

This replacement is especially useful when the original housing is cracked

Balboa 4.0 kW [15" x 2"] FloThru Heater Assembly (58111) aosmith 2" MBT connection styleBalboa 15" FloThru Heater Assembly [4kw] [2X2] (58111) is engineered with a clear focus on flow through efficiency, making it a targeted solution rather than a generic replacement component. In spa systems, heaters are not interchangeable without consequencematching output, flow characteristics, and system communication is essential to achieving consistent performance. This model is built to align with those exact requirements. In real world usage,