HeavyDuty Beathable Tight Mesh Winter Full Air Conditioner Cover - Square - 24x24x 24 Ht - Gray PremierAcCovers Provide protection during winter with its tight breathable mesh, that does not cause rusting of your ac unit. Full 5 year manufacturers warranty. 100% satisfaction guarantee This cover is NOT waterproof. We also sell Premier Full covers with waterproof tops. Full 5 year manufacturer's warranty. 100 percent satisfaction guaranteed