Therm 5.5kW [17.75" x 2"] Flo-Thru Incoloy Heater [Hercules] (26-0155-7S-K) gptools Improves control-system confidence and repair

Improves control-system confidence and repair quality

Helps restore both function and visible seat quality

A wire harness is useful because it connects multiple electrical components in an organized

This type of component is especially useful in larger or more feature-rich spas where an exact control configuration matters for full-function replacement

The double-gasket design makes it a strong choice for restoring sealing confidence at the wall fitting

Therm 5.5kW [17.75" x 2"] Flo-Thru Incoloy Heater [Hercules] (26-0155-7S-K) gptools Improves control-system confidence and repairTherm [Hercules] 17. 75" 5. 5kW Flo Thru Incoloy Heater (26 0155 7S K) is a replacement heater developed around the fit and operating requirements of Hercules, making it a practical choice when the original heater assembly must be matched carefully. Its 5. 5kW heating output and 17. 75" heater length should be matched to the original equipment requirements before installation, since spa heaters are not universally interchangeable. When a spa struggles