Therm [Marquis Spas] 12" 4.0kW Flow-Thru Incoloy Heater (26-C2278-1-5S-K) topsides A grate with collar is

A grate with collar is especially useful because it helps create a more complete replacement at the visible drain point

Balboa genuine AX10A4 auxiliary topside

Supports cleaner direct replacement during service

or no longer delivering the level of performance expected from the heater

This cleaner replacement part helps keep compatible Hayward suction cleaner assemblies operating as intended

Therm [Marquis Spas] 12" 4.0kW Flow-Thru Incoloy Heater (26-C2278-1-5S-K) topsides A grate with collar isTherm [Marquis Spas] 12" 4. 0kW Flow Thru Incoloy Heater (26 C2278 1 5S K) is designed as a purpose focused replacement heater for Marquis Spas, where matching physical configuration and heating output is essential to dependable spa operation. Its 4. 0kW heating output and 12" heater length should be matched to the original equipment requirements before installation, since spa heaters are not universally interchangeable. In day to day spa operation, a