The best interior cat door should let your cat come and go, lock shut when you want, not change the look of your home and be simple to install.  The Kitty Korner® cat door checks all these boxes.  You love your cat; the complication is they need a litter box.  Litter boxes are not something you care to see or smell.  Kitty Korner® cat door can help you hide the litter box while allowing your cat access. Our cat door is also a great way to allow you to sleep with the bedroom door closed while letting the cat come and go. Kitty Korner® cat door wont change the look of your home. Kitty Korner's patented SlideLock hinges are designed to slide up and away from the floor to allow them to flip open and closed without scraping the floor. Select the kit that fits your Righthand or Lefthand swing door.