Our verdict
Pick Boxiecat Extra Strength for probiotic odor control in busy multi-cat boxes. Pick Dr. Elsey's Ultra for plain unscented bentonite in a 40 lb bag.
The central trade-off
Odor. Boxiecat uses probiotics; Dr. Elsey's relies on clay.
Clumps. Boxiecat's Hard Flat Top clumps stay near the surface.
Side by side
| Specification | Boxiecat Extra Strength Clumping Litter | Dr. Elsey's Ultra Unscented Clumping Clay Litter |
|---|---|---|
| Made from | Clay | Clay Litter |
| Scent | Extra Strength | Unscented |
| Form | other | Pellet |
| Bag weight | 16 pounds | 40 pounds |
Values are the makers' published specifications. "Not stated" means the maker doesn't publish it.
Which should you choose?
Choose the Boxiecat Extra Strength Clumping Litter if
- Probiotic odor control
- Multi-cat boxes