These pet doors were originally names the "Carlson Pet Door". The story is that the president of Carlson Products, a manufacturer of walk-in freezer doors and 'slam' doors (drive the forklift through without bothering to open the door!), got a dog.  He didn't like the pet door that he found at his local pet shop so he had his company make him one. After developing the product, it was sold to another company and re-named the SmartPet Pet Door.

For insulation value it is right up there with the double-flap-and-dead-air-space- between doors currently available.  The 'self-framing' adjustment range is 1³/₈" - 1³/₄".  Satin (aluminum) only frame color. A steel dead-bolt built into the flap engages the frame for security.

The locking mechanism is a keyed lock for additional security.

The original 'with window' versions have been discontinued in favor of the new clear Lexan (polycarbonate) window design which provides a 'see-through' flap instead of the original aluminum flap.

Please allow the manufacturer 2 weeks to ship.

Medium SmartPet
Lexan Version