This dog door panel is designed for compatible sliding glass doors with an adjustable height range from 75 7/8 in to 80 11/16 in. The L-size Pvc flap is made for large-sized dogs, while the aluminum alloy frame and tempered glass window material create a door-style insert for everyday placement. A 180 degree swing-open design helps create wider access when needed. The slide-in panel format fits compatible sliding door tracks without cutting into the wall, making it useful for renters and temporary setups.