Drops into a sliding window: Fits the open half of a horizontal sliding window without cutting or drilling Aluminum or vinyl frame: Pick aluminum for sturdier feel or vinyl to match common vinyl window frames Three flap sizes: Small, medium, and large, for cats and small to mid-size dogs Track heights 33.5" to 60.5": Adjustable in 1.5" bands, plus a custom-height option for non-standard openings Made in USA, locking cover included: Built domestically and backed by a 3-year warranty The Liberty Pet Door for White Horizontal Sliding Windows is a removable insert for horizontal sliding windows with a white frame. It sits in the open side of the window and the window slides closed against it. No permanent modifications to the home, which works well for renters.Frame is available in aluminum or vinyl, both in white. Three flap sizes (small, medium, large). Stock track heights run from 33.5" to 60.5" in 1.5" bands, with a custom-height option for outliers. The flap is clear vinyl with a magnetic seal. A locking cover ships in the box.Before ordering, measure the inside height of the window opening with the sash all the way open. Pick a height range that brackets your measurement. If your window frame is black, use the black-frame version. For cats only, the cat-sized window panel is smaller and cheaper.Made in the USA and backed by a 3-year warranty. Install is an easy DIY job, no tools required beyond a tape measure.
