[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" - White
White quilted indoor window air conditioner cover with polyester fiber fill insulation.
White quilted indoor window air conditioner cover showing product dimensions of 25 x 17 x 3.5 inches.
Diagram showing the triple-layer insulation design of the indoor window air conditioner cover.
White indoor window AC cover showing adjustable strap, plastic lock, and extra strap for a secure fit.
White indoor window AC cover showing pre-cut side holes for electrical cables with Velcro closure.
White quilted indoor window air conditioner cover for winter insulation shown next to a mounted AC unit.
Comparison chart showing BlueStars 3-layer indoor window AC cover with cable holes versus standard 2-layer covers.
White quilted indoor window air conditioner cover with polyester fiber fill insulation.
White quilted indoor window air conditioner cover showing product dimensions of 25 x 17 x 3.5 inches.
Diagram showing the triple-layer insulation design of the indoor window air conditioner cover.
White indoor window AC cover showing adjustable strap, plastic lock, and extra strap for a secure fit.
White indoor window AC cover showing pre-cut side holes for electrical cables with Velcro closure.
White quilted indoor window air conditioner cover for winter insulation shown next to a mounted AC unit.
Comparison chart showing BlueStars 3-layer indoor window AC cover with cable holes versus standard 2-layer covers.
Lifetime Warranty

[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" - White

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

Key Features

  • Material: Quilted polyester exterior with polyester fiber fill insulation
  • Closure: Hook-and-loop side fasteners for a secure, adjustable fit
  • Function: Reduces cold drafts, minimizes heat loss, and prevents dust accumulation during off-seasons
  • Dimensions (Internal): 25 inches (L) x 17 inches (H) x 3.5 inches (D)
  • Color: White

Replaces / Cross-Reference Part Numbers

  • Universal indoor cover for window-mounted air conditioners
  • Replaces standard quilted fabric or plastic indoor AC covers

Compatibility & Fitment

  • Fits most standard window air conditioning units from 10,000 BTU to 12,000 BTU
  • Designed for the interior-facing portion of the AC unit
  • Verify your AC unit's dimensions before purchase; must be smaller than 25" x 17" x 3.5"

When to Replace

  • Cover has visible rips, tears, or punctures
  • Insulation material is compressed, damaged, or no longer effective
  • Fastening system is broken or no longer holds securely
  • Cover has become permanently stained or exhibits mildew growth

Installation Tips

  • Ensure the air conditioner is turned off and unplugged before installation
  • Clean and thoroughly dry the interior-facing surface of the AC unit
  • Position the cover over the unit, ensuring full coverage
  • Secure the side fasteners tightly to eliminate gaps and prevent drafts
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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.
Item Weight
‎9.1 ounces
Package Dimensions
‎11.77 x 7.8 x 3.35 inches
Size
‎10000 - 12000 BTU
Color
‎White
Material
‎210D PVC, POLYESTER FIBER PADDED, and 190T Polyester Taffeta

FAQ

This cover is designed for indoor use on window-mounted air conditioners. It fits units that match the listed cover size of 17" x 13" x 3.5". For best results, measure the front face of your indoor AC unit before ordering, especially if your air conditioner has a deeper control panel or a non-flat front.
This is an indoor AC cover. It is intended to cover the room-facing side of a window air conditioner during colder months to help reduce drafts, dust, and heat loss through the unit. It is not meant to replace a full exterior weather cover.
Common signs include cold drafts coming through the air conditioner, noticeable heat loss near the window, dust buildup on the front grille during the off-season, and higher discomfort in the room during winter. An indoor cover can help reduce airflow leaking through the unit when it is not in use.
The Velcro sides make it easier to wrap the cover around the front of the window AC and secure it for a closer fit. This helps the cover stay in place and can improve the seal against indoor drafts compared with a loose slip-on cover.
Installation is typically simple and usually takes just a few minutes. In most cases, no tools are required. You generally place the cover over the indoor face of the window air conditioner and fasten the Velcro sides so it fits snugly.
Before installing the cover, turn the unit off, unplug it if accessible, and make sure the front grille and filter area are dry and reasonably clean. If there is dust buildup, clean the filter and front panel first so debris is not trapped under the cover during storage months.
It can help reduce indoor drafts and add insulation at the front of the unit, but it may not completely eliminate all air leakage. Window air conditioners can also leak air around the side panels, sash gap, or exterior housing, so those areas may also need sealing for the best winter performance.