The DogWalk Wall Mount pet doors are available in single or dual flap models. A dual flap door will provide more of an insulation barrier than a single flap. The DogWalk doors are made of durable aluminum construction. The tunnels are aluminum as well. Included with the door is a security panel that locks into place. This panel is made of Makrolon, a durable polycarbonate. The flexible lightly tinted flaps are made by Bayer High-Tech Plastics. The flaps carry a limited lifetime warranty, and the door itself has a 3-year warranty.
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