Frost King SP57/11C All Season Water Heater Insulation Blanket, 3&rdquo; Thick x 48&rdquo; x 75&rdquo;, R10 Vinyl backed fiberglass insulation blankets are designed for gas, oil or electric water heaters up to 60 gallon size Improves Heater efficiency 3 Thick x 48 x 75, R10 Package contains a roll of plastic tape