Window Air Conditioner Covers for Outside Unit to Protect AC and Winter Insulation, Waterproof & Snowproof AC Covers for Outside Window Units with 3 Layers Insulation 21" W x 15" H x 16" D - Brown

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• 【Thermal Locking Trilayer Construction】Amerbro's professional air conditioner covers for outside units feature an advanced triple-layer design for superior protection. The outer layer is made of durable 600D Oxford fabric, offering waterproof and windproof performance. Inside, a 2mm thermal padding of high-density pearl cotton provides excellent insulation, while the inner heat-reflective aluminum foil lining enhances temperature regulation. Together, these layers ensure robust defense against harsh weather conditions, outperforming standard single-layer AC covers
• 【Find Your Perfect Fit】Designed to fit standard AC units up to 20.5"W x 14.5"H x 15.5"D. The AC unit covers outdoor interior space: 21"W x 15"H x 16"D (provides 0.5" installation clearance) Always measure your actual unit dimensions before ordering!
• 【Easy-Fit Design Works with Mounting Brackets】The sewing threads at the bottom of the window air conditioner cover is designed for easy trimming to accommodate units with support brackets. If your unit has no bracket, simply slip the ac cover for outside unit on directly
• 【Metal Buckle and Premium-Grade Strap】While competitors compromise with brittle plastic components, we insist on military-spec metal buckles and abrasion-resistant reinforced webbing that combines extreme durability with user-friendly installation
• 【StormArmor Protection】 Our waterproof heavy-duty air conditioner covers for window units are designed to protect your air conditioning unit from harsh weather conditions