Sealing Outlet Covers (Set of 3 covers) - OC5030

Very useful and exactly what I was looking for. Even with those outlet covers, cold air still gets through the plugs themselves, especially if they're older outlets. I needed something to cover the whole outlet when not in use. This one lets you use the outlet when you have to while blocking the cold air.Just one shortfall: if you use a three-pronged plug on this and remove it, the large, round hold will have "opened up" and will let air through. So you'll either have to cover the holes with a larger plug cover than they provide (which covers only the two small slits) or remove the whole cover and re-bend the plastic so that the round hole is closed again. Other than that, for most purposes a great little addition to your cold-blocking arsenal.