For Patio auto adjusting pet door fits sliders. Medium available from small cats to medium size dogs this comes with tempered pane safety glass. shatter-resistant, tempered safety glass. It's also equipped with the energy-conserving ultraseal flexible flap system designed to keep the heat and cold outdoors.
Have two:
1 is standard 4 $120
2 Has upgraded special Premium Airseal draft stopper door
sell for $150 was $300 new
pet opening flap is 7" wide x 12" high overall size is 12" wide x auto adjustable 77 5/8" - 80 3/8"
fits most all standard sliding glass patio doors
Doggie dog door