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Buyer’s guides
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buyers-guide
Litter-Robot Waste Drawer Liners and Carbon Filters: What to Buy
Whisker's own pages say any bag that fits the waste drawer works and the carbon filter is optional. Here is what the official supplies cost per year.
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buyers-guide
The Best Automatic Litter Boxes for Multiple Cats
The best automatic litter box for multiple cats keeps up with back-to-back visits and tells each cat apart. Five boxes compared, one clear pick.
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buyers-guide
The Best Litter for the Litter-Robot 4 (and What to Avoid)
The best litter for the Litter-Robot 4 is a hard-clumping, low-dust one that keeps its sensors reading right. Here are four that work, and what to avoid.