Product Description: Fitsmost 55 gallon drums.Ideal for heating up WVO for settling orprocessing biodiesel. This heater is controlled by a an adjustablethermostat.Flexible springs are used to attach the silicon heater aroundvarious diameter drums. The springs can stretch up to about 3inches.For plastic drums, it is recommended to keep the thermostat setbelow 100°F (37°C) Speciations: Dimension: 125mm(Width)*1740mm(Length)1.5mm(Thickness) Drum Size:200 L(55Gallon) Heating Power:1000W Input Voltage:<240VAC Insulating materials: the maximum temperature of 250 °F (120°C) The use temperature: 80 to 300 °F (30 to 150°C) Insulation resistance: >= 5 Mohm Compressive strength: 1500V / 5S Withstand voltage: > 5 KV Package Include: 1pc Silicon heater (the drum not included)