Petco’s Chief Veterinarian, Dr. Whitney Miller recommends: World’s Best Cat Litter Mulitple Cats Flushable Unscented Corn. “It clumps easily, doesn’t track, keeps odor down and is long-lasting,” she ...

Although bentonite cat litter is suggested, we used corn litter we had on hand and experienced no issues. With the press of a button, the litter box sifts itself, dropping clumps into the trash ...

However, my senior cat had no trouble and used this box frequently. Although he didn't use the top entry, he tracked no more litter out of this box than the others we tested. Best disposable ...