PetSafe Extreme Weather Pet Door Medium, Easy Install, Insulating, Weather Proof, Energy Efficient, 3 Flap System

MAXIMUM ENERGY EFFICIENCY: Unique three-flap system is more energy efficient than traditional single-flap doors ADDITIONAL INSULATION: Great for hot and cold climates, the central insulated flap helps keep extreme warm and cool air outside of your home CONTROL YOUR PET’S ACCESS: A snap on the closing panel keeps your pet from using the door; use a second closing panel (sold separately) for an additional layer of weather protection DO-IT-YOURSELF INSTALLATION: Easily fits into standard-size panelled, wood, metal and PVC doors 1 5/8 in. - 2 1/4 in. thick QUALITY GUARANTEED: PetSafe brand has been a trusted global leader in pet behaviour, containment and lifestyle innovations for nearly 30 years; we help pets and their people to live happily together