Effective water intrusion defense: A tight polyester weave plus a sealed edge barrier block rain and moisture, protecting indoor spaces with durable protection. Hassle assembly: Threestep installation aided by a tension cord and tape kit delivers a dependable seal with minimal effort. Flexible integration: An adjustable width feature fits a wide range of window openings and air conditioner units, ensuring secure sealing across diverse configurations. Stable construction: Reinforced stitching and dense fabric resist deformation, delivering durable, longlasting window seal performance for AC units. Use scenarios Install during the rainy season to prevent leaks around a window air conditioner in residential or small commercial spaces. Adapt to different window sizes or moving between rooms; adjust width to maintain a secure seal. Ideal for rental properties or multiwindow setups where quick, reliable sealing is needed.