This guard may be used with either the floating or sinking de-icer, and is specifically designed to protect a plastic tank. For rubber, plastic, or structural foam tanks. Snap on guard with floater. Dimensions are 14.5 X 14.5 X 4 Made Of Galvanized Wire, And Is Assembled Without The Use Of Welding. Less Affected By Rust And Corrosion. UPC Code = 022102088106