1.Fits vinyl slider tracks with 1-1/4" or greater track width.
2.Design for Large Dog: This patio dog door features a flap opening of 11.88" W x 15.94" H, perfect for dog up to 80 lbs.
3.Adjustable Height of the Frame: Adjustable The Frame Height from 6.27 to 7.18 FT.
4.Our dog door is made of thick aluminum alloy and acrylic plate, which is very suitable for large dogs. As long as your door is within the range of 6.27 to 7.18 FT, it is suitable.
5.Sense of security:Come with 1pcs panel that can slide up and down and be locked,offer your pets the freedom to explore the outdoors while keeping your home secure and comfortable with the Pet Door.