[Lifetime Warranty] Window Air Conditioner Cover Indoor with Velcro Sides - Inside AC Cover for Winter - Polyester Fiber Fill Layers Insulation - 25" x 17" x 3.5" - Black
Black quilted indoor window air conditioner cover with drawstring closure.
Black quilted indoor window air conditioner cover with 25x17x3.5 inch dimensions and drawstring closure.
Infographic showing triple-layer insulation design of indoor window air conditioner cover with polyester fiber fill.
Black indoor window AC cover showing the adjustable strap, plastic lock, and secure fit features.
Black indoor window AC cover showing pre-cut side holes for electrical cables on a white air conditioner unit.
Black quilted indoor window air conditioner cover for winter insulation installed on a unit.
Black indoor window air conditioner cover with 3-layer insulation and cable access holes.
Black quilted indoor window air conditioner cover with drawstring closure.
Black quilted indoor window air conditioner cover with 25x17x3.5 inch dimensions and drawstring closure.
Infographic showing triple-layer insulation design of indoor window air conditioner cover with polyester fiber fill.
Black indoor window AC cover showing the adjustable strap, plastic lock, and secure fit features.
Black indoor window AC cover showing pre-cut side holes for electrical cables on a white air conditioner unit.
Black quilted indoor window air conditioner cover for winter insulation installed on a unit.
Black indoor window air conditioner cover with 3-layer insulation and cable access holes.
Lifetime Warranty

[Lifetime Warranty] Window Air Conditioner Cover Indoor with Velcro Sides - Inside AC Cover for Winter - Polyester Fiber Fill Layers Insulation - 25" x 17" x 3.5" - Black

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Indoor Window Air Conditioner Cover (25" x 17" x 3.5")

Key Features

  • Blocks cold air drafts and reduces heat loss during off-seasons.
  • Constructed with multiple layers of polyester fiber fill for thermal insulation.
  • Features adjustable hook-and-loop side fasteners for a secure, sealed fit.
  • Internal Dimensions: 25 inches (Length) x 17 inches (Height) x 3.5 inches (Depth).
  • Color: Black.

Replaces / Cross-Reference Part Numbers

  • Universal accessory designed to fit multiple brands and models.
  • Serves as a substitute for other quilted fabric indoor AC covers with similar dimensions.

Compatibility & Fitment

  • Fits most standard window-mounted air conditioner units.
  • Designed for indoor units with a capacity ranging from 10,000 to 12,000 BTU.
  • Confirm fit by measuring your indoor AC unit. The cover accommodates units up to 25" L x 17" H x 3.5" D.

When to Replace

  • The cover is visibly torn, frayed, or damaged.
  • Insulating material has become compressed, reducing effectiveness.
  • The cover no longer provides a snug, sealed fit around the unit.

Installation Tips

  • Ensure the air conditioner is powered off and the surface is clean and dry before installation.
  • Position the cover over the indoor portion of the window unit.
  • Adjust the side fasteners to achieve a tight seal against the unit frame.
  • Verify there are no gaps around the edges to prevent air leakage.
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  • Designed for lasting satisfaction

    Designed for lasting satisfaction

    Our indoor window AC cover features three tough layers: 210D PVC, Silk Wadding, and 190T Polyester Taffeta. These materials make it strong, insulating, and windproof. This means your AC unit stays safe, your energy bills stay low, and your AC lasts longer.
  • Versatile Velcro Side for Cable Management

    Versatile Velcro Side for Cable Management

    Featuring two side openings with adjustable Velcro flaps, this design allows air conditioner cables to easily pass through, whether positioned on the left or right side. When not in use, the flaps securely close to ensure a sleek, streamlined appearance.
  • Keep the cold out and Prevent warm air leaks

    Keep the cold out and Prevent warm air leaks

    You can enjoy the comfort of a draft-free, warm space while significantly reducing your energy bills. By sealing your space effectively, you not only experience enhanced comfort but also achieve improved energy efficiency, making it a smart choice for both your comfort and your wallet.
  • Clean, Cozy, Efficient: Our All-in-One Solution

    Clean, Cozy, Efficient: Our All-in-One Solution

    Our Window AC Cover is a versatile solution. It's dustproof, keeping your space clean. It's windproof, no more drafts. Cleaning is easy, just wipe. It blocks cold air, saving energy and keeping you warm.
Product Dimensions
‎25 x 17 x 3.5 inches
Size
‎10000 - 12000 BTU
Included Components
‎Extra Drawstring, Window AC Cover

FAQ

This cover is designed for indoor use on a window-mounted air conditioner. It fits over the room-side front of the unit to help reduce drafts, dust, and heat loss during the off-season. It is not intended for portable air conditioners, mini-split wall cassettes, or outdoor-only use.
Measure the indoor-facing front of your installed window air conditioner, including the face and depth the cover needs to wrap around. Compare those measurements to the listed cover dimensions, and make sure there is enough room for the Velcro side closure to wrap snugly without overstretching. A slightly snug fit usually works better than a loose one for blocking drafts.
The Velcro side openings let the cover wrap around the air conditioner more securely and adjust to the shape of the unit. This helps reduce gaps at the sides where cold air, dust, and insects can enter, especially on units with side panels or slightly uneven front profiles.
No. The cover should be removed before operating the air conditioner. Running the unit with the cover installed can block airflow, reduce performance, and potentially cause moisture or overheating issues.
An indoor cover helps reduce cold drafts coming through the front grille of a window AC during the heating season. It can also help keep indoor heat from escaping through the unit, and it limits dust buildup on the air conditioner while it is not in use.
An indoor cover helps from the room side, but it does not protect the exterior portion of the unit from weather. If your goal is both draft reduction indoors and weather protection outdoors, some users pair an indoor cover with a separate exterior cover made for outdoor exposure. Make sure any outdoor cover does not trap excessive moisture against the unit.
Installation is usually simple and takes only a few minutes. Clean and dry the front of the air conditioner, place the cover over the indoor side of the unit, and secure the Velcro sides for a snug fit. No tools are typically required.
Before installing the cover, turn the unit off, unplug it if accessible, and clean the front grille or filter area. Let any moisture dry out first. Covering a damp unit can trap moisture and lead to musty odors when the air conditioner is used again.