Which is cheaper per pound?

Arm & Hammer. At its $12.76 low for 38 lb it costs about $0.34 per pound, against about $1.37 per pound for the 14 lb World's Best bag at $19.15.

Which is better for a multi-cat household?

Arm & Hammer Dual Defense is built for multi-cat homes, with baking soda and Microban for odor and a 38 lb box that lasts longer. World's Best works for multiple cats too, but you will buy bags more often.

Can I flush either litter?

Only World's Best Cat Litter is listed as flushable. Arm & Hammer Dual Defense is clay and should go in the trash.

Which controls odor better?

Arm & Hammer adds baking soda, odor eliminators and Microban plus a scent. World's Best relies on clumping and has no listed odor additives, so it suits owners who prefer unscented litter.

Is the Arm & Hammer worth it at its high price?

At $30.76 for 38 lb it is about $0.81 per pound, still cheaper per pound than World's Best at $19.15 for 14 lb. Wait for a lower price if you can.

Which is better for kittens?

Arm & Hammer lists kittens as suitable. World's Best does not list an age range, so check the bag before using it with very young kittens.

World's Best Cat Litter Multiple Cat Clumping vs Arm & Hammer Dual Defense with Microban Clumping Cat Litter

Buy the World's Best Cat Litter if you want a flushable, plant-based litter and scoop smaller bags. Buy Arm & Hammer Dual Defense if you want the lowest cost per pound and a scented clay litter with baking soda and Microban. Arm & Hammer's 38 lb box has ranged from $12.76 to $30.76 since October 29, 2026, while the 14 lb World's Best bag has held at $19.15. That makes Arm & Hammer far cheaper per pound at its low price, but its price swings a lot.

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