AA Attic Duct Insulation Cover - 37.4"x50.79" Whole House Attic Ceiling Fan Shutter Seal Cover, Attic Armour Fan Cover for Energy Efficiency | Perfect for Home Insulation, HVAC Protection & Weatherproofing

U.S. Energy Products is a first-class operation. The foil faced foam adhered very well to the Velcro supplied and over all the cover performs just as the company claims. I highly recommend U.S. Energy Products to anyone wanting to improve the insulation in their home.