Breathable Tight Mesh Air Conditioner Cover - PremierAcCovers Winter Full - 36x36x35ht - Gray Provides protection during winter with its tight breathable mesh, that does not cause rusting of your ac unit. PremierAcCovers Winter full covers are made of heavy duty material with a full 5 year manufacturers warranty 100% satisfaction guarantee. This cover is NOT wtaerproof. We also sell Premier covers with waterproof tops All of our covers are made in America using American materials and labor. 100% satisfaction guarenteed.