Review on 🔌 TradeGear Double Gang 10Pack Wall Plate Insulation Gasket: Weatherproof Polyethylene Foam for 2-Gang Switches – No Adhesive Required. Ideal for Light Switches, Decor, and GFCI Outlets – Multiple Cut-Outs Provided! by Don Merritt

Just recently on a cold day (30 mph wind) I noticed my exhaust systems were drafting. That tiny bit of air coming out of each vent (particularly exterior walls and HVAC duct walls) adds up. This product is easy to use and takes only a few seconds to install. Perforated cutouts for both socket types, no tools required except a screwdriver to remove the wall plate. I've used them on my outlets and single pole switches and the next day I saw a significant difference at the same wind speed. We look forward to winter to see if they can handle the frost. I'll update my review if they don't work. Absolutely amazed at how much heat and air conditioning I lost to drafts.