K&H Pet Products Ultimate Stock Tank Deicer w/ Cord Clip Red 1000W THERMOSTATICALLY CONTROLLED: This deicer automatically turns on and off as needed to keep your stock tank from freezing. FLOATING OR SUBMERSIBLE: This deicer can be used as a floating deicer or a submersible deicer and includes a full cage and cord clip. SAFE FOR ALL STOCK TANKS: The K&H Ultimate Deicers are safe for all stock tanks. Please refer to the zone chart by scrolling down to the "From the Manufacturer" section to choose which deicer is perfect for your area and stock tank. 2 YEAR WARRANTY: K&H 2 year manufacturer's warranty included ELECTRICAL SAFETY LISTED: This product has been rigorously tested and is certified by MET Laboratories to exceed USA and Canadian electrical safety standards. Don't be deceived by electrical products that have not been tested and certified by an accredited nationally recognized testing laboratory.