TitleHeater (6500-310) Hi-Limit Sensor (6600-168)
Compatibility: Sundance 880/850 models from 2000-2015*
*Note: When replacing heaters in spas manufactured prior to April 2007 it is necessary to replace the hi-limit sensor as the old sensor will not fit into the new heater.
6500-310, Smart heater assembly, 5.5 kW (not interchangeable with 6500-844)
6600-168, Hi-limit sensor