this is an expensive cat box but is extreamly worth itit doesnt smell no mess and cleans up itself

Pros: no smell no mess no problem

Cons: expensive

This product works great to prevent odors from escaping the litter box unless you have many cats. Its also very easy to replace and not messy or smelly at all.

Pros: Prevents odors and easy to change

Cons: Doesn't last long with Multiple cats

I like the look of this design and it probebly would be good for small spaces. It looks like it would keep the litter in the box.

Pros: The design looks nice.

Cons: Not very big

This filter really does work on keeping out the smell of litter. The best Ive used so far.

Pros: Keeps out odor.

Cons: Not cheap