Modular Patio Pet Doors Super Easy installation using two or three modular sections Patio Pet Doors give you the ease of your pet traveling in or out without your assistance without the hassle, work, or disadvantages of cutting holes in doors or walls. Most patio pet doors, however, are unwieldy and heavy to handle.Don't' wrestle with a conventional patio pet door. This modular model is ideal for quick installation and ease of handling, yet still includes all of the benefits of tough tempered safety glass, weather-resistant flap, and attractive design. You can take it with you when you move. You can even take it with you when you travel since it is in smaller sections and easier to transport. Modular Patio Pet Door Features: * Adjustable height for standard aluminum sliding patio doors sizes 77-5/8" to 80-3/8"* Slim * Available in White or Mill finish. Bronze is coming soon * Sturdy aluminum construction * Right or left hand mount   * Animal Lock-out slide * Limited Lifetime Warranty MORE DETAILS ABOUT MODULAR PATIO DOOR INSERT