How often should I replace the charcoal filter?

Most owners replace it every two to four weeks, or sooner in a multi-cat home. A clogged filter stops absorbing odor.

Is it big enough for a large cat?

It is about 25 inches long and 11.75 inches tall, which suits average cats. Owners of large or tall cats often find it tight.

No. It ships with the box and one charcoal filter. You supply litter, a scoop and liners if you use them.

The hood is the odor-control part, so leaving it off removes the filtering benefit. The flip top is meant to stay on and open only for scooping.

The maker lists it for multiple cats, but with two or more cats you will scoop more often and replace filters sooner.

Two to three inches of your preferred clumping litter is enough. More litter means more tracking out the front.

Rated 4.5 out of 5 from 1,300 ratings.

At Petshiwu, for $32.99, 26% under what the other stores charge, as of our latest check.

8 stores we checked sell it, including Petsmart, Chewy, Petshiwu, PetSmart, Petco.com.

$32.99at PetshiwuChecked 1 h ago

26% under what the other stores charge

Compared across 8 stores. Prices are checked against each store and labelled with when.