Give your pet the freedom to roam with this Dog Door for Sliding Glass Door, featuring an adjustable height range of 75 7/8" to 80 11/16" to fit most patio door frames. Built with a sturdy aluminum frame and a tempered glass window, this pet door offers a durable, secure, and visually appealing solution that's perfect for renters or homeowners looking for a non-permanent installation. The upgraded metal cover and new hinge-structure flap are designed to withstand low temperatures and frequent use, ensuring long-lasting performance for your medium-sized dog. With a generous flap opening of 10 1/4" x 16 1/4", your pet can move in and out comfortably, while the secure locking mechanism lets you easily control access when needed for safety and peace of mind. Weighing 17.9 lbs (8.1 kg) and designed to slide into your existing track without tools, this dog door is easy to install, reliable, and convenient for everyday use.