Window Air Conditioner Cover Indoor with Velcro Sides - Inside AC Cover for Winter - 21" x 15" x 3.5" (Brown)

Window Air Conditioner Cover Indoor with Velcro Sides - Inside AC Cover for Winter - 21" x 15" x 3.5" (Brown)Indoor Window Air Conditioner Cover (21" x 15" x 3. 5") Key Features Designed to block cold winter drafts, dust, and debris from entering the interior living space through the inactive air conditioning unit. Constructed with a heavy duty fabric exterior and high density polyester fiber fill layers for optimal thermal insulation. Features integrated hook and loop side straps to allow for easy adjustment and secure routing of the appliance power cord.

Indoor Window Air Conditioner Cover (21" x 15" x 3.5")

Key Features

• Designed to block cold winter drafts, dust, and debris from entering the interior living space through the inactive air conditioning unit.
• Constructed with a heavy-duty fabric exterior and high-density polyester fiber fill layers for optimal thermal insulation.
• Features integrated hook-and-loop side straps to allow for easy adjustment and secure routing of the appliance power cord.
• Finished in a neutral brown color to blend with standard interior room decor and trim.
• Measures exactly 21 inches wide, 15 inches high, and 3.5 inches deep to provide a snug, wrap-around fit.

Replaces / Cross-Reference Part Numbers

• Universal 21x15 Indoor AC Cover
• Standard Winterizing Draft Shield
• Polyester Fill AC Insulation Bonnet

Compatibility & Fitment

• Universally compatible with most standard window-mounted air conditioning units measuring up to 21" W x 15" H x 3.5" D.
• Fits major appliance brands including General Electric (GE), Frigidaire, LG, Haier, and Kenmore, provided the physical dimensions match.
• Designed strictly for indoor use; not intended to protect the exterior condenser unit from outdoor weather elements.

When to Replace

• Transitioning into the fall and winter seasons when the window air conditioner will remain installed but powered off.
• Noticeable cold air drafts or wind noise can be felt entering the room through the AC vents.
• The existing winter cover has torn seams, degraded elastic edging, or failing hook-and-loop fasteners.
• The internal polyester insulation has compacted or flattened, losing its thermal sealing properties.

Installation Tips

• Turn off and unplug the air conditioning unit from the wall outlet before installing the cover for the winter season.
• Wipe down the front plastic grill of the AC unit with a dry cloth to ensure no dust or moisture is trapped beneath the fabric.
• Slip the cover over the top corners of the unit first, then pull the elastic edges down evenly over the bottom corners.
• Secure the side hook-and-loop straps firmly against the unit casing, ensuring the power cord is safely routed through the side gap without being pinched.