OdorTrap Pack Refills by Whisker, 12 Pack Refill for OdorTrap Pod (Pod Not Included), Eliminates Litter Box Odors, Compatible with Litter-Robot & Traditional Litter Boxes, 8.96 Fl Oz

These are very effective at cutting through litter box smell. Unfortunately they are so expensive that I won’t be ordering very often.

It completely eliminates the smell! I have a litter robot 4 and I put one pouch in the waste drawer and one inside of the globe. Great quality and easy to use. I just wish they would last longer since they’re quite expensive.

It actually stops cat box oder. I'm impressed. Little pricey but they do last a while.

They do a great job of removing the odor and the difference is noticeable (even when the litterbox is super clean, the difference of having them vs not is so noticeable).In my Litter Robot 4, I throw them behind the drawer (not in the drawer). I use an off-brand black filter in the filter tray attached to the globe. I change both (the bead packs and filters) every few weeks.This product is way too expensive. I've been looking for a cheaper knock-off version, but haven't yet found any. I'll keep paying for the Whisker brand because these are worth it until I find a better value.

Part of the litter robot system. Love the litter robot. Great for people with more than one cat

Helpful to keep odors down

Not bad

Works well. Very easy to put into the compartment in the litter robot globe. Will continue to purchase.