[Lifetime Warranty] Window Air Conditioner Cover Indoor with Velcro Sides - Inside AC Cover for Winter - Polyester Fiber Fill Layers Insulation - 17" x 13" x 3.5" - Black

21" x 15" x 3.5" Black Window Air Conditioner Cover Indoor

Key Features

• Interior cover designed to block drafts and prevent heat loss during off-seasons.
• Constructed from durable polyester fabric for long-term use.
• Features an elastic border or drawstring for a secure, sealed fit.
• Helps keep dust, moisture, and debris from entering the room through the unit.
• Color: Black
• Dimensions (L x H x D): 21 in x 15 in x 3.5 in

Replaces / Cross-Reference Part Numbers

• This is a universal cover, not a direct replacement for a specific manufacturer part number.
• Intended for any brand of window air conditioner matching the specified dimensions.

Compatibility & Fitment

• Fits most standard window air conditioner units with face dimensions from 19"-21" (Length) x 13"-15" (Height).
• Compatible with many 10,000 to 12,000 BTU window units.
• Verify your air conditioner's indoor unit dimensions prior to purchase to ensure proper fit.

When to Replace

• Replace if the current cover is torn, punctured, or frayed.
• If the material has degraded and no longer provides an effective seal against drafts.
• When the elastic or drawstring mechanism is stretched out or broken, preventing a secure fit.

Installation Tips

• Ensure the air conditioner is powered off before covering the unit.
• Wipe down the face of the AC unit to remove any dust or debris.
• Position the cover over the front of the indoor unit.
• Pull the edges to ensure it is fully seated around the unit's frame.
• Tighten the integrated securing mechanism to create a firm seal against the wall or window frame.