Therm [Hercules] 17.75" 5.5kW Flo-Thru Incoloy Heater (26-0155-7S-K) filters 0 HP single-speed 16

0 HP single-speed 16

and this Intermatic RC613 version is a single-channel 115 volt model using the RC613 reference

Raypak stack adapter

direct replacement

The Waterway 210-6170 Poly Jet internal is designed for compatible jet assemblies and features a 4-3/16 inch face diameter with pulsator action

Therm [Hercules] 17.75" 5.5kW Flo-Thru Incoloy Heater (26-0155-7S-K) filters 0 HP single-speed 16Therm [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