Therm 4.0kW Heater [240V] [Caldera Highland Series Heater] (C2400-C3330-1A) pooltool Matching the correct DSI igniter

Matching the correct DSI igniter helps preserve intended startup function and supports a cleaner repair

and SherLok 120 filter applications

Epoxy putty helps fill

Useful when original bearings are worn or rough

The 2 pump large rectangular design gives this panel practical value because some spas require a specific keypad footprint as well as the correct function mix

Therm 4.0kW Heater [240V] [Caldera Highland Series Heater] (C2400-C3330-1A) pooltool Matching the correct DSI igniterThe Therm 4. 0 kW heater is designed for compatible 240 volt Caldera Highland Series applications where the heater assembly needs to be replaced with the correct series specific part. Application specific heaters are useful because they help preserve the fit, wiring expectations, and general operating characteristics the spa was built around. This replacement is especially useful when the original heater has failed, stopped heating consistently, or is