Air Conditioner Covers for Outside Window AC, 21"W x 15"H x 16"D, Black

Trilayer Thermal ShieldThe air conditioner covers for outside units employ a 3-layer defense system: rugged 600D Oxford outer sheds water and wind, 2mm pearl cotton mid-layer traps warmth, and reflective foil inner liner blocks cold air from penetratingsurpassing ordinary single-layer AC covers in harsh winters | Perfect Fit GuaranteedFits standard ACs up to 20.5"W x 14.5"H x 16"D. AC unit covers outdoor interior dimensions: 21"W x 15"H x 16"D (allows 0.5" clearance for installation). Verify your unit's size before ordering to ensure a perfect match | Bracket-Ready Flexible InstallationThe ac covers for outside window unit comes with pre-stitched bottom seams that can be clipped away to clear support brackets. For bracket-free units, simply slide the air air conditioner cover directly into place with no adjustments needed | Heavy-Duty Metal Buckle & Reinforced StrapWhile others use flimsy plastic clips, we rely on corrosion-proof metal buckles and high-strength webbing that offer both lasting durability and quick, effortless fastening | All-Weather ArmorOur waterproof heavy-duty air conditioner covers for window units provide full protection against rain, snow, gusts, and intense sunlightensuring your AC performs reliably season after season