Cat Mate 221 Locking Cat Door

Cat Mate 221 manual cat flaps with a 4-way locking flap (fully closed, fully opened, outdoor access only, indoor access only) Large 7" x 7" cat door designed for big cats and small dogs up to 14" shoulder height Door mount suitable for materials 0"–2" thick, including doors, storm doors, and thin panels  Wall mount comes with snap-together tunnel sections, trimmable to fit walls or doors up to 8" thick (liners for walls available separately) Energy-efficient brush strip around the clear, rigid Polypropylene flap Easy installation with included template and hardware The Cat Mate 221 is the top cat flap for those seeking a versatile and sturdy solution for their furry friends' comings and goings. With its generous 7" x 7" flap, this pet door accommodates large cats weighing over 20 pounds and small dogs up to 14" shoulder height. It's perfect for indoor or outdoor use, giving your pets the freedom to explore while you enjoy peace of mind. The Cat Mate 221 features a four-way locking