Not available in Quebec. Prevent freezing in any metal or plastic tank with this unique universal drain plug de-icer. The 1,500-watt tank heater mounts easily and securely in the drain plug hole for a semi-permanent installation. The electrical cord exits through the bottom of the tank so it won't be disturbed by livestock. This powerful drain plug de-icer is controlled with a thermostat to maximize efficiency. It works in all tanks up to 300 gallons (1,135 litres).