Technical Specs Item name 55 Gallon Metal Drum Heater Width 5 inch Length 68.5 inch Size 55-gallons (208L) Quantity 2 Pcs Description Precise temperature control This heater has a unique feature - an adjustable thermostat that lets you control the temperature with precision. The temperature adjustment range is quite broad, from 80 to 300°F (30 to 150°C), making it suitable for a variety of applications. For plastic drums specifically, it's recommended that you set the thermostat at 100°F (37°C), which helps ensure optimal results. Fits most 55 gallon drums It designed to fit most 55 gallon drums. And the cool thing is, they've used resilient springs to make sure the silicon heater can hug drums of different sizes and diameters securely. Easy to Use The internal heating body is made of nickel-chromium alloy wire, the ultra-thin flat plate heats up quickly, the heating effect is good, the thermal efficiency is high, and the service life is long.