PetSafe Premium Plastic Pet Door - Large
Give your pet the freedom she needs, when she needs to go inside or out. No more scratch marks on your door, or messes to clean up. It can be secured with a locking panel when you're gone. Soft, transparent single flap has a magnetic bottom strip to ensure a tight seal against the elements. Easy to install, it fits standard 3/8" to 2" thick doors. For dogs up to 100lbs.