Frost King AC3H Outside Window Air Conditioner Covers, 18in x 27in x 22in x 6mm, Grey

Frost King outside covers for window air conditioners help protect your expensive unit from damage caused by harsh winter weather.Fits from 10,000 BTU to 15,000 BTU Heavy-duty polyurethane reinforced vinyl material protects unit from winter weather Helps prevent cold air from entering the home while preventing heat loss Elasticized for a tight, secure fit Designed not to crack or mildew