The Frost King Fiberglass Water Heater Insulation Blanket is a high-quality product designed to insulate up to 60-gallon electric or gas tanks. Made of fiberglass/vinyl material with a thickness of 1.5 inches, this blanket/jacket is 48 inches wide and 75 inches long, providing excellent insulation for your water heater. Easy to use and durable, this Frost King blanket is a reliable choice for maintaining the temperature of your water heater efficiently.