sliding glass pet door - $80 (laurel hts / presidio)

The Sliding Glass Pet Door quickly installs into your sliding door track.
You can install this pet door without cutting or drilling into your door frame, or you can choose to for a more permanent installation.
You’ll still be able to use your human sliding glass door as normal once the pet door is installed.
Made with weather-resistant aluminum, shatter-resistant tempered glass and includes a magnetic closure to help keep cold drafts and hot weather out.
Adjustable Frame Height: 76" - 81" Frame Width: 11 1/2" Pet Size: Up to 40 pounds Flap Opening: 8 1/4" x 13 3/16" Included: Glass sweep with double sided tape, Foam weather-strip, Closing panel, Screws, Optional latch kit and T-bracket.
https://www.
petsafe.
com/product/freedom-patio-panel-81/?sku=PPA11-13135