28" x 20" x 3.5" Window Air Conditioner Cover Indoor (Black)

With an inner dimension of 17" x 13" x 3.5" (L x H x D), it fits most window air conditioners or indoor AC units from 3000BTU to 5000BTU, specifically accommodating sizes between 15"-17" in length, 11"-13" in height, and up to 3.5" in depth.Our indoor AC cover, with its triple-layered composition of 210D PVC, silk wadding, and 190T polyester taffeta, effectively insulates against wind and cold from entering and lowers heating expenses in winter.Our AC cover features a water-resistant 190T taffeta inner lining to block humid air, safeguarding your air conditioner. Coating for water resistance, it acts as a shield against wind and rain.Embedded with silk, our indoor air conditioner cover prevents warm air from escaping and blocks cold air from entering through AC, thereby reducing heat loss and lowering heating expenses during winter.