World's Best Multiple Cat Unscented Litter. In testing, there was no detectable smell even after continuous use by two cats for a month. One 13-pound bag was sufficient to fill a large litter box ...

Although natural litters tend to be more pricey than clay litter, World's Best Multiple Cat Unscented Litter is an affordable, high-quality corn-based litter that clumps quickly and manages odors ...