[High-Quality Material] The ac unit covers outdoor is made of heavy duty waterproof 600D Polyester Oxford. It has good waterproof function, corrosion resistance, high and low-temperature resistance, good aging resistance and long service life. [All Season Protection] The central air conditioner cover can perfectly block rain, snow, leaves, debris, etc. from entering your air conditioner, and it also has sun protection function, which can effectively prevent your air conditioner from aging. [Easy to install] First slip the hvac covers over your ac unit, then seal the side openings. Finally adjust the bottom cord lock according to the size of your air conditioner. [Ventilation design] There are two pockets on the side of this ac unit cover, they are not sealed, which can facilitate the ventilation of the air conditioner and prolong the life of the air conditioner. [Easy to Clean] Since our ac cover for outside unit is very waterproof, you can simply rinse it with water or wipe it with a damp towel and let it dry.