Therm [Cal Spas] 15.75" 5.5kW Flo-Thru Incoloy Heater (26-H0021-7S-K) srsmith or hard-to-service original component and

or hard-to-service original component and supports water direction control through compatible pool or spa plumbing circuits

Useful when the original plate is cracked or worn

Hayward Hydrostream eyeball inlet

supporting easier user operation and a cleaner visual result

and it supports coordinated heater operation between sensors

Therm [Cal Spas] 15.75" 5.5kW Flo-Thru Incoloy Heater (26-H0021-7S-K) srsmith or hard-to-service original component andTherm [Cal Spas] 15. 75" 5. 5kW Flo Thru Incoloy Heater (26 H0021 7S K) is a replacement heater developed around the fit and operating requirements of Cal Spas, making it a practical choice when the original heater assembly must be matched carefully. Its 5. 5kW heating output and 15. 75" heater length should be matched to the original equipment requirements before installation, since spa heaters are not universally interchangeable. When a spa