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

A properly selected replacement helps preserve the intended support and internal path of the valve instead of forcing the repair to rely on a near-fit substitute

Using the proper Lasco elbow can help support stronger routing and a cleaner system layout

The WGX1031BHF2 is a practical service part when a compatible Hayward drain installation needs a grate and frame to restore dependable suction-point protection

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