Petsafe; Deluxe Patio Panel Pet Doors Aluminum

Simply the best and easiest to use Patio Panel. Beautifully designed, heavy-duty lockable panels for sliding glass doors are perfect where security, durability, and weather resistance are primary concerns. Features Fits sliding glass door frame openings from 77 3/4" to 82". Exclusive self-adjusting design with no cutting required for installation. Insert into the frame of your sliding glass door and it automatically adjusts to the proper height. Reversible lock for right opening or left opening patio doors. Heavy-duty aluminum frame. Sliding door weatherstrip and weather seal. Tempered safety glass. Energy conserving Ultraseal replaceable transparent flap. Multiple ceramic magnets ensure flap always closes completely. Locking panel lets you restrict your pet's use both inside and out. Lifetime warranty.