PlexiDor Performance Pet Doors for Dogs and Cats - Door Mount Dog Door with Lock and Key - White, Large Sizes
- Turns any sliding glass door into a fully automatic pet door.
- pet door insert easily fits into your sliding glass patio door track.
- Motor driven vertically-sliding door is activated by MS-4 ultrasonic collar.
- Directional sensing system opens the door only when your pet is on a direct approach, not when he is just wandering by or sleeping next to the door.
- 4-Way access control lets you select from In only, out only, Full Access or closed and locked.
- panel size: 12-1/4 X 16-inch for pets up to 100-pound.