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Ranger by Freedom Pet Pass – Insulated Dog Door for Doors – L

Amazon.com Price: $399.00 (as of 04/11/2023 00:23 PST- Details)

DoubleMag technology gives an airtight and weatherproof seal for the only truly draft-free dog door; lab-certified to seal 15X better than the requirements for Energy Star human doors
Insulated flap system keeps your house comfortable even in extreme conditions; proven to work from temperatures as low as -40 F to as high as 160 F
Comes with easy-to-use locking clear acrylic security panel