High Tech Armor Flex Pet Door for Walls

Energy-efficient pet door with a flexible flap Magnetic airtight seal can withstand high winds while being easy for dogs to use  Aluminum-framed panel for sturdy installation Comes with a secure locking cover  Fits walls 3 1/4" - 7" thick  The High Tech Pet Armor Flex Pet Door for Walls is an energy-efficient in-wall pet door made with a premium aluminum frame. The extreme weather dog flap is made from interlocking segments that provide horizontal rigidity to fully compress seal the sides of the flap while still allowing the vertical flexibility needed for easy and safe pet use. The flexible flap is made from high-strength ABS composite that can withstand frequent use. Each side of the flap is also lined with a series of magnets that hold it closed against strong winds. The door's tunnel fits in walls from 3 1/4" to 7" thick and the frame features industrial grade, heavy-gauge aluminum construction. Each Armor Flex door is finished with a durable power coating that resists scratche