Therm 4.0kW Flo-Thru Titanium Heater [Marquis Spas] (740-0650) inletoutlet Because many pool and spa

Because many pool and spa systems use similar-looking components with small dimensional or model differences

or lost performance from repeated heat exposure

An anchor socket channel helps provide a supportive receiving point for compatible deck-mounted hardware

Installed in the proper generator setup

The multiple part references give this cartridge practical value because filter matching is most dependable when it follows known cross-reference numbers tied to the original cartridge family

Therm 4.0kW Flo-Thru Titanium Heater [Marquis Spas] (740-0650) inletoutlet Because many pool and spaTherm [Marquis Spas] 4. 0kW Flo Thru Titaniuim Heater (740 0650) provides a targeted heating solution for Marquis Spas, combining the specified output and construction needed to restore consistent water heating without relying on a generic substitute. Its 4. 0kW heating output should be matched to the original equipment requirements before installation, since spa heaters are not universally interchangeable. A heater replacement affects more than water