Our verdict
Pick Dr. Elsey's Ultra for plain bentonite with hard clumps and 99.9% dust-free claims. Pick Fresh Step Simply Unscented for charcoal and Ammonia Block odor control with a 15-day claim.
The central trade-off
Odor. Fresh Step adds activated charcoal and Ammonia Block Technology.
Dust. Dr. Elsey's states 99.9% dust-free.
Side by side
| Specification | Dr. Elsey's Ultra Unscented Clumping Clay Litter | Fresh Step Advanced Simply Unscented Multi-Cat |
|---|---|---|
| Made from | Clay Litter | Clay |
| Scent | Unscented | Unscented |
| Form | Pellet | Granule |
| Bag weight | 40 pounds | 37 pounds |
Values are the makers' published specifications. "Not stated" means the maker doesn't publish it.