For sale: NEAKASA automatic litter box, model M1, with its accompanying step, filter, and air purifier. I used it for less than a week and then my cat went to live with other people, so I no longer have a need for it. It's clean and in excellent condition, without the original box. The device self-cleans after each use, and it has an app you can control from your phone, with safety sensors for the cat. The accompanying step reduces litter scatter and helps with odors. Price is negotiable