In-Line Duct Heater Thermostat Compatible Grainger Part Number 6LHG1 6LHG2 Color White Includes (2) AAA Alkaline Batteries Remote Transmitter Overall Length 6 in For Fan Type Heater Inline Duct Fans Compatible Manufacturer Model Number HP6-1000120-2T HP8-1440120-2T Housing Color White Housing Material Plastic Includes Batteries Yes Nameplate Voltage 24V AC