Silicon Rubber Heater, Current Rating 10 A, Environment Indoor, Outdoor, For Container Capacity 55 gal, For Container Material Type Metal, Plastic, For Container Type Drums, Thermostat Temperature -Maximum 85 Degrees F, Thermostat Temperature -Minimum 67 Degrees F, Operating Voltage 115V AC, Watt Density 5 W/sq in, Watts 1,200 W, Drum Diameter - Maximum 23 1/5 in, Drum Diameter - Minimum 22 3/10 in, Electrical Connection Type 5-15P Plug