Finally i have found something that keep my pets water clean and fresh. I have bought so many things and none have worked until this one. It is very quiet and run so smooth. The water refilters itself so I rarely have to refill or add water. It comes with the mat to go under it and extra filters. I have had it a week and love it. Both my cat and dog use it. It took my cat a little bit to get used to it but she is scared of her shadow. WE LOVE IT!!! Great purchase.