[Lifetime Warranty] Window Air Conditioner Cover Indoor with Velcro Sides - Inside AC Cover for Winter - Polyester Fiber Fill Layers Insulation - 28" x 20" x 3.5" - Black
Black quilted indoor window air conditioner cover with insulated polyester fiber fill and side drawstring.
Black quilted indoor window AC cover showing 28 x 20 x 3.5 inch dimensions for 14000-24000 BTU units.
Diagram showing triple-layer insulation design of indoor window AC cover with 190T Taffeta, polyester fill, and 210D PVC.
Black indoor window AC cover showing adjustable strap, plastic lock, and extra strap for a secure fit.
Black indoor window AC cover showing pre-cut side holes for electrical cables.
Black quilted indoor window air conditioner cover installed on a unit to prevent air leaks and save energy.
Black indoor window air conditioner cover with 3-layer insulation and cable access holes.
Black quilted indoor window air conditioner cover with insulated polyester fiber fill and side drawstring.
Black quilted indoor window AC cover showing 28 x 20 x 3.5 inch dimensions for 14000-24000 BTU units.
Diagram showing triple-layer insulation design of indoor window AC cover with 190T Taffeta, polyester fill, and 210D PVC.
Black indoor window AC cover showing adjustable strap, plastic lock, and extra strap for a secure fit.
Black indoor window AC cover showing pre-cut side holes for electrical cables.
Black quilted indoor window air conditioner cover installed on a unit to prevent air leaks and save energy.
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 - 28" x 20" x 3.5" - Black

Save 30%
0.00
$36.17
$51.67
$36.17
In stock
Fast delivery

Secure and trusted checkout with

  • Visa
  • Mastercard
  • American Express
  • PayPal
  • Diners Club
  • Discover
Contact for wholesale
🛠️
CONFIRM THE FIT FOR YOUR MODEL
Enter your model number

Indoor Window Air Conditioner Cover (28" x 20" x 3.5")

Key Features

  • Dimensions: 28 in Width x 20 in Height x 3.5 in Depth
  • Purpose: Covers the indoor-facing side of a window air conditioner.
  • Function: Blocks cold drafts, dust, and debris during off-seasons.
  • Material: Multi-layer insulated fabric with a protective interior liner.
  • Fastening: Integrated hook-and-loop side straps for a secure fit.
  • Maintenance: Washable fabric.
  • Color: Black

Replaces / Cross-Reference Part Numbers

  • Universal indoor cover for window air conditioners.
  • This is not a direct replacement for a specific manufacturer part number.
  • Alternative to brand-specific winterizing kits.

Compatibility & Fitment

  • Fits most standard window-mounted air conditioner units up to 28 inches wide and 20 inches high.
  • Suitable for units typically rated between 14,000 and 24,000 BTU.
  • Note: Measure the face of your indoor unit to ensure proper fit before purchase.

When to Replace

  • The existing cover is torn, punctured, or has degraded material.
  • Fasteners are broken, worn, or no longer create a secure seal.
  • Visible mold, mildew, or persistent odors are present after cleaning.
  • The cover no longer fits snugly, allowing drafts to penetrate.

Installation Tips

  • Turn off power to the air conditioner unit before installing the cover.
  • Clean the surface of the indoor unit to remove dust and ensure a good seal.
  • Place the cover over the front of the unit.
  • Adjust the side straps to create a tight, secure fit with no gaps.
  • For off-season use only. Do not operate the air conditioner with the cover installed.
Product image
Product image
Product image
  • 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
‎11.3 ounces
Product Dimensions
‎28 x 20 x 3.5 inches
Size
‎14000 - 24000 BTU
Color
‎Black
Material
‎Polyvinyl Chloride (PVC)
Included Components
‎Extra Drawstring, Window AC Cover

FAQ

This cover is intended for indoor use on window-mounted air conditioners during the off-season. It fits over the room-side portion of the unit to help reduce drafts, dust, and heat loss around the face of the AC.
The Velcro side openings let you wrap the cover around the indoor portion of the window AC and adjust it for a closer fit. This is useful when the unit projects from the wall differently or has side panels and control areas that need to be enclosed without removing the air conditioner.
An indoor cover is helpful if you feel cold drafts coming through the air conditioner, notice dust collecting on the front grille during the off-season, or want added insulation around a window unit that stays installed year-round.
No tools are typically needed. Installation usually takes just a few minutes: turn the unit off, clean and dry the front of the air conditioner, place the cover over the indoor face, and secure or adjust the Velcro sides for a snug fit.
Yes. Clean or vacuum the front grille and make sure the unit is dry before covering it. If the filter is removable, cleaning it before storage season can help prevent musty odors. It is also a good idea to confirm the AC is switched off for the season before installing the cover.
It can help reduce drafts and improve insulation at the indoor face of the unit, but it may not completely air-seal every installation. Gaps around the window frame, side curtains, or the chassis opening may still need additional sealing if you are trying to minimize winter air leakage.