Endura Flap® by Patio Pacific - Thermo Sash 3e - Sash Window Cat & Dog Door

Thermo-Sash 3e™ Sash Window Pet Door  Key product features: Exclusive - Every Thermo-Sash 3e™ includes the award-winning Endura Flap™ pet door flap - the best engineered high performance pet door flap ever made. Take a look at the Endura Flap Design Criteria used to develop this awesome flap. You don't want a leaky flap! Exclusive -The Endura Flap™ is guaranteed for 15 years. Exclusive -The Endura Flap™ won the coveted Fancy Publications Editors Choice for 2007. Dual Pane, Insulated Low "E" Glass is the highest performing glass available. It is standard on the Thermo-Sash 3e™. This glass unit is guaranteed for 10 years. Spring Load design can be installed and removed in seconds. No Tools installation. Exclusive -Built-In anti-whoops allows for 3/4" change in adjustment range to allow for small measuring errors. Draft Stopper - Keeps air from coming in between the two windows. Adjustment Ranges accommodate windows 22" - 43" wide in 3" increments. Be sure your track width is