Adjustable Height: 77-5/8" To 80-3/8" for ALUMINUM sliding patio doors only. To ensure ordering correct height, measure flush at top track to the inside bottom track of your ALUMINUM sliding patio door frame. Please review measurement instructions and video before ordering. Includes a weather strip to perfectly seal with your slider, keeping the elements out and your home comfortable. Easy to install and remove: Perfect for renters or anyone who prefers a less permanent solution. Features a 15" x 20" flexible, transparent vinyl flap that makes it easy for your pet to come and go while providing a clear view. Pet door rise is 8" (Pet door rise is the distance of the pet door from the floor) with a door width of 18.75”. Suitable for pets up to 15” wide and weighing up to 120 pounds.