Compact and durable aluminum Heating Element. PTFE Non-stick Coating for easy cleaning. Multiple Thermostats for Safe, Optimized Control. 10' anti-rub cord UL Listed. One year warranty. Can be used in plastic containers. Suitable for containers of 30 gallons or less. 250 Watts, 120 Volts, 60 Hz. 12.1 x 12.1 x 2.5 cm