The super large Perfect Pet Dog Door is another energy efficient pet door for your convenience. Innovation is incorporated into the double vinyl design of the flaps. This design creates an area of enclosed air which enhances energy efficiency.

Adjustable frame telescopes form a thickness of about ¾ inches to 1 ¾ inches in total. Increasing the thickness increases the air insulation of the door as it adapts to the thickness of your wall. An optional wall kit is sold separately in case you need one.