Petsafe Extreme Weather Door - LargePETSAFE Extreme Weather Pet Door Large Description Well let your pet come and go while keeping drafts out. This plastic pet door is one of our most energy efficient dog and cat doors with 3 insulating flaps that block 3. 5 times more thermal energy than standard pet doors that only have 1 flap. There is a magnetic seal at the bottom of the flaps to help keep out drafts in hot or cold weather. And if youre looking for a pet door to match your home