How many fit
Only 2 of the 24 models checked meet every need here: “Run on crystal litter”.
2 models fit, out of 24 checkedPicked for one job
Top pick

Only PetSafe ScoopFree Crystal Pro, within this 20-product set, is designed around disposable crystal trays.
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No other model in this 20-product set is built around disposable crystal trays the way PetSafe ScoopFree Crystal Pro is.
By the numbers
What we found across the automatic litter boxes we compare, plus the checked facts behind each finding.
Only 2 of the 24 models checked meet every need here: “Run on crystal litter”.
2 models fit, out of 24 checkedHow we countedThe count uses each product's current fit ratings for “Run on crystal litter”. A need with no documented match is not counted.
| Product | Needs it meets | Facts we checked | Sources |
|---|---|---|---|
| PetSafe ScoopFree Crystal Pro Legacy |
|
|
Decision guide
PetSafe ScoopFree Crystal Pro stands alone in this 20-product set as the model built around disposable crystal trays.
The low rake keeps things simple, though it relies on proprietary replacement trays. Crystal Pro uses crystal trays, and its body is 6.2 inches high.
Its cabinet is 19.1 inches wide, and crystal is the litter it is documented to fit.
Even a roomy litter bed may not win over a large or cautious cat if the entrance is small.
1 options

PetSafe, Crystal Pro Legacy
Crystal is the documented litter fit, and the cabinet is 19.1 inches wide.
Top pick ifwork with crystal litter and tuck under a counter
You depend on proprietary crystal trays.
Ready to buy
Top pick for this job

The cabinet comes to 19.1 inches wide.
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