MaxSeal Pet Doors by Security Boss
Security Boss Manufacturing, LLC is the leading manufacturer of high performance pet doors. The MaxSeal line is available in several models that range from installation into doors and walls to specialty models for French doors and In-the-Glass. Maintainable forever, these doors feature a limited lifetime warranty and are designed for optimum performance. No other pet door offers the same level of insulating seal and security.
Important Sizing Notes: The selector above is a good guide for wall and door mounted models. When installing you will want to mount the pet door so that the top of the opening will clear the shoulders of the tallest pet by 1.5 to 2". When selecting an In-the-Glass model, you will select a taller model as the pet door will rest on the bottom frame of your sliding glass door...and you will still want to maintain the 1.5 to 2" shoulder clearance.