Arm & Hammer Clump & Seal Platinum Cat Litter vs Special Kitty Odor Control Cat Litter

Clump & Seal's baking soda formula actively neutralizes ammonia odor rather than just masking it. Good Housekeeping's testers found zero detectable smell after multiple days unscooped. Special Kitty, by contrast, has Reddit users specifically calling out that the smell spread through their entire house despite regular cleaning. This isn't a minor gap — it's the difference between guests noticing you have a cat and guests not knowing.

If you're filling a large box for two cats, you're going through 20+ lbs a month. At those volumes, Special Kitty saves you roughly $10-12 every month, or $120-$140 a year. That's not nothing. The question is whether you're buying that savings back in air fresheners, candles, and the social cost of a smelly home — and for most people, you are.

Clump & Seal forms tight, firm clumps that lift out cleanly in one piece. Special Kitty's clumps are softer and more prone to breaking apart mid-scoop, which means you're either leaving wet litter behind to contaminate the box or scooping out more clean litter than necessary. Over a month, that broken-clump waste quietly erodes Special Kitty's price advantage.

Both products track, but Special Kitty tracks more — Good Housekeeping explicitly flags it and recommends keeping a broom nearby. If your litter box is on hardwood or tile, you'll feel those granules underfoot every morning. Clump & Seal isn't tracking-free, but it's meaningfully better. This is the kind of small daily friction that makes you resent a product over time.