Pestell Clear Choice Low Track Silica Crystals Cat Litter

March 2009. As a rule, cat experts aren't fond of crystal-based cat litters, which absorb moisture and neutralize odors but can irritate a cat's sensitive paws. The big advantage of crystal litters like Pestell Clear Choice Low Track Silica Crystals Cat Litter is that they only have to be changed about once a month. Unfortunately, urine will pool in the box once the litter becomes saturated. Most reviewers and pet owners say you (and your cat) will be better off with either a standard clumping-clay cat litter like Scoop Away Multiple Cat Formula (*est. $18 for 28 lbs.) or an organic litter like Feline Pine (*est. $12 for 20 lbs.).

Clear Choice Cat Litter (like other crystal cat litters) isn't included in many comparative reviews, since owners and experts lean toward biodegradable or clay cat litters. However, we found positive feedback for this brand in the San Francisco Chronicle and from consumers at Amazon.com.