This is a replacement heating element for the XTreme Power XPH-6400i, XPH-9300 and XPH-9650 machines. There are 2 heating elements inside these machines, and these are sold individually. Each heating element consists of a 1000 watt heating rod, 2 thermostats, and an insulated heater housing. These CANNOT be used with the XPH-5900i or XPH-9600 machines as they would be over 20-amps in total power per power cord, and would trip normal circuit breakers.