| Whisker Litter-Robot 5 Pro | $600+ | MANUAL (outranks product page, and resolves the conflict between the LR5 and LR5 Pro product pages): 'Never put anything in the unit other than clumping litter or litter beads and Manual |
| Whisker Litter-Robot 5 | $600+ | MANUAL (outranks product page, and resolves the conflict between the LR5 and LR5 Pro product pages): 'Never put anything in the unit other than clumping litter or litter beads and Manual |
| Whisker Litter-Robot 4 | $600+ | MANUAL (outranks product page): 'Never put anything in the unit other than clumping litter or litter beads and crystals that are small enough to pass through the screen.' Transluce Manual |
| Whisker Litter-Robot EVO | $400–600 | MANUAL: clumping litter, or beads and crystals small enough to pass through the screen; translucent/white litter may impact Drawer Full Indicator accuracy. 'DO NOT use litters that Manual |
| PETKIT Purobot Max Pro 2 | $400–600 | MANUAL: 'The size of cat litter should not exceed 12 mm (0.47 in) in length and 3 mm (0.12 in) in diameter.' A dedicated litter sitter is described as 'exclusive for tofu cat litte Manual |
| PETKIT Purobot Ultra (P9903) | $600+ | MANUAL: two litter sitters supplied - P99031 'suitable for tofu cat litter and mixed cat litter'; P99032 'suitable for fine granular cat litter such as mineral cat litter and bento Manual |
| PETLIBRO Luma | $400–600 | Compatible: 'clumping, tofu, and mixed litters'. Excluded: 'non-clumping (crystal, pine) or ultra-fine litters (grass seed, cassava)'. Manufacturer |
| PetSafe ScoopFree OpenSky | $400–600 | MANUAL (outranks the product page's 'most clumping litter types'): 'Litter with larger pellets, such as pine or tofu litter, may not be compatible with the litter box.' Manual |
| PETKIT Purobot Max 3 (P9906) | $400–600 | '99% of clumping litters including clay, tofu, corn, bentonite'. Crystal only via a separate Crystal Duo model. No particle limit published for this model. Manufacturer |
| HomerunPet CS106 | $600+ | Compatible: clumping clay, tofu, cassava, cassava-tofu mix, tofu-bentonite mix. Two filter types supplied (large-pore and small-pore). No exclusion list and no numeric particle lim Manufacturer |
| PETKIT PuraMax 2 (P9902) | $400–600 | MANUAL: 'Do not use large particles of cat litter larger than 1.2 cm in length and 3 mm in diameter.' 'The standard litter sitter is suitable for tofu cat litter and mixed cat litt Manual |
| Neakasa M1 Plus | $400–600 | Recommends fast-clumping scoopable bentonite/mineral litter. Excludes highly absorbent, non-clumping, loosely clumping, newspaper and wood pellet litters. Particle limit: up to 3 m Manufacturer |
| PetSafe ScoopFree SmartSpin | $250–400 | MANUAL (outranks the product page's blanket 'compatible with any litter'): 'Litter with larger pellets, such as tofu litter, may not be compatible with the litter box.' Litter must Manual |
| CATLINK Scooper Young Pro-X | $250–400 | Small-particle clumping litters; particles must pass the sift filter. Explicitly not recommended: pure tofu and long-strip tofu. Excluded: strictly absorbent, non-clumping, loose-c Manufacturer |
| PetSnowy SNOW+ | $600+ | Compatible: 'all clumping litter (preferably clay), tofu, pine, and crystal litter'. Excluded: non-clumping, newspaper-based, absorbent wood pellet litter, absorption-only designs. Manufacturer |
| Petcove PurrTek Max | $250–400 | 'Works with any clumping litter' (brand shop copy). A sibling model, PurrTek Light, states quick-clumping bentonite clay only, no pellets/crystals — the brand's statements are not Retailer-declared |
| Popur X5 | $600+ | 'Most clumping cat litter will work'; low-dust, lightweight, fast-absorbing, hard-clumping preferred. PrettyLitter crystals work; powder-like or small-particle crystal is fine; mar Manufacturer |
| Casa Leo Leo's Loo Too | $400–600 | MANUAL: 'Use only clay clumping cat litter that absorbs moisture.' Manual also instructs adding 4.5-5.5 kg of litter and not filling beyond the indicator sticker. Manual |
| M-series 95 L drum platform | Under $150 | 'Compatible with most clumping cat litters' (cumrige.com FAQ). No exclusions, no particle limit. Retailer-declared |
| CATLINK Scooper Open-X | $150–250 | 'Compatible with any clumping cat litter' — blanket claim, no exclusions or particle limit published for this model. Retailer-declared |
| Whisker Litter-Robot 3 Connect | price not observed | 'Works with almost any clumping litter' (marketplace listing title, not a manufacturer spec page) Retailer-declared |
