The 6500-310 is the Smart Heater used in Sundance Spas from 2000 to current. The Smart Heater is a complete replacement heater which includes the high-limit thermo disc and the necessary wires for connecting to the control board.
The replacement multiport valve assembly includes the top handle for easy flow regulation and allows you to easily adjust to the desired setting. The unique design prevents any unwanted clogging that may restrict the water flow and hinder the overall performance.. SPO714T