Give your furry friend the freedom to come and go with the PetSafe Most Energy Efficient Pet Door. This Extreme Weather Aluminum Cat and Dog Door features 3 flap insulation to keep out the cold and heat. Easy to install with an aluminum frame, this door is suitable for small, medium, and large pets. Keep your pet comfortable and your energy bills low with this energy-efficient pet door. - Discover top-quality at the best prices! Lightning-fast shipping to Canada, Australia, UK, New Zealand, Europe, UAE, Saudi Arabia, and more.