Best widely available clumping litterLitterFresh Step
Fresh Step Clumping Cat Litter
Clay clumping workhorse — buy what your cat already accepts before “upgrading”
About $15–$30

Best design-forward litter box
Modkat
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Higher walls and liners — when cheap trays explode litter across the bathroom
About $70–$150
Modkat aims at apartment aesthetics and litter scatter control with taller walls and reusable liners. Cats still decide: some refuse tops. Offer an open option during transitions. Pair with unscented clumping litter your cat already accepts.
Who it's for: Apartment dwellers fighting litter tracking.
Skip if: You have a kitten or senior who needs a very low entry — verify height.
Alternatives with different tradeoffs — not clones of the same pitch.
Best widely available clumping litterLitterFresh Step
Clay clumping workhorse — buy what your cat already accepts before “upgrading”
About $15–$30
Best self-cleaning crystal systemLitterPetSafe
Disposable crystal trays — less scooping, ongoing tray cost
About $110–$160