Top 8 Best modern pet door

✔Wide Application: the cats dog pet door fits on pet carrier, glass door, interior doors, steel door, security door and window, cupboards and so on
✔Applicable for: the size of weatherproof pet door is approx. 8 x 8.6 x 1.2 inches, and the pet flap door is designed with slots, it's suitable for cat with waist circumference shorter than 15.75 inches /40 cm, it fits to being installed to interior doors, exterior doors, windows, cupboards, glass, etc.
✔Convenient Lock: the pet door knob style switch is 4 way rotary, you can easily rotate it to 4 modes with the arrow and icons to control your cat's access options: in only, out only, in and out freely, totally locked

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✔Floating bottom threshold for perfect seal every time; Lock-out slide to keep your Ideal Pet out of mischief when unsupervised
✔Flexible vinyl flap with patented edges that won’t warp from use or extreme temperatures

✔【Sliding Security Panel】Use the sliding locking panel to control your pet's access to the outdoors. And there is a button above the panel, so you can lock the door at night or on the go.
✔【Weatherproof & Energy Efficient】 Double flaps can keep hot or cold weather outside and air conditioner effectively, which will save your electricity bill greatly. And if you encounter extreme weather conditions, you can slide the panel down to be insulated from the outside weather.
✔【Designed for Small and Medium Pets】 This dog gate is compatible with interior and exterior paneled doors. Flap opening is 9 inches wide x 12.5 inches tall

✔Pressure mount for use in-between rooms and doorways
✔Stands 30" tall and accommodates openings 28" to 42" wide (includes two 5" extension frames)