Therm [Leisure Bay] 17.5" 4.0kW Flo-Thru Incoloy Heater (26-1001-5S-K) harwil Using the correct replacement can

Using the correct replacement can help restore the cleaning setup and reduce frustration during vacuuming service

A focused replacement like this is especially useful when the rest of the pump assembly remains serviceable and the weak point is isolated to the impeller itself

Supports a more complete and readable heater interface

These components are critical to how the heater moves water

Therm [Leisure Bay] 17.5" 4.0kW Flo-Thru Incoloy Heater (26-1001-5S-K) harwil Using the correct replacement canTherm [Leisure Bay] 17. 5" 4. 0kW Flo Thru Incoloy Heater (26 1001 5S K) is a replacement heater developed around the fit and operating requirements of Leisure Bay, making it a practical choice when the original heater assembly must be matched carefully. Its 4. 0kW heating output and 17. 5" heater length should be matched to the original equipment requirements before installation, since spa heaters are not universally interchangeable. When a spa