Reduce Maintenance Costs and Prolong the Life of your Customer's Condensing Unit with Brinmar's 0639A Condensing Unit Cover. The 0639A is made of Heavy Duty Vinyl with a Durable Cloth Backing that is Specially Treated to be Resistant to Mildew, UV and Cold-Cracking. The Cover is Secured Quickly and Easily with a Convenient Hook-and-Loop Strap Sewn around a Precision Cutout for the unit's Electrical and Refrigeration Lines