Freedom Pet Pass Door Mount Dog Door Overview First dog door approved and endorsed by Veterinarians, Home Energy Engineers, and Construction Industry experts Proprietary technologies deliver an air tight seal with thermal resistance providing home energy savings Acclaimed for proven sealing capability that prevents air, water, light, and insect infiltration Premium flexible three layer pet flap quietly seals, is very easy to pass through, and sets a new standard for pet safety Ideal for dog owners who wish to give their dog the freedom to safely come and go as they please without comprimising home comfort A Freedom Pet Pass dog door does what a dog door should do while conserving energy, lowering your utility bills, reducing noise and pollutants, improving indoor air quality, and improving the comfort of your home. The energy efficient qualities have been tested and documented by an independent energy engineering firm that has identified a product payback for each dog door size. Veterinarians approve of our innovative flap design that provides safe flexible freedom for your pet to come and go as they please. What we offer is a dog door that pets can use on their own terms, without compromising home energy costs, consumption, and comfort. Features and Benefits The first locking security door that attaches to the dog door from the front rather than sliding in from the top or side. This allows our product to be installed into a storm door like a residential window. This allows the installer various installation options to compliment your home d�cor. We manufacture each dog door with non toxic materials and there are no sharp inside corners, springs, pins, or mechanical hinges that can harm your pet. Our flexible canvas coated insulated flap closes quietly. Cleans and disinfects to help keep multiple pets from sharing infections. Eliminating cold drafts will reduce the likelihood of kennel cough and sore joints.