After you have bought it

What each one keeps asking of you

A litter box is not a one-off purchase. Some name a refill, a filter or a cartridge, some hold features behind a subscription, some will not run until an app is bound to them, and they disagree on how long they will stand behind the machine. This page collects what each manufacturer states about all of it — in the maker's own words where a manual says it — and how many state nothing.

There are no prices here. What a refill costs is retail data that moves weekly, and PURRINDEX does not publish live retail pricing. What it can tell you is what each maker has committed you to in writing, which is the part of the decision that does not change with a sale.

25 of 44 manufacturers state this

Named consumables

A consumable the maker names somewhere in its documentation. Of these 25: 11 name at least one part by the maker's own name — a part code, a trademarked product, a proper noun; 14 name only a generic noun, such as bags or a filter, and do not say whether another brand's will do; and 1 documents in its manual that a generic alternative is fine. A name of the maker's own is what the documentation names. It does not mean an alternative is forbidden; it means nobody said.

Amazon Basics Automatic Self-Cleaning Litter Box (SMARTO M500): liners, deodorizer, air purifying liquid
generic noun only; compatibility not documented
BISSELL CleanWell 4393: waste bags
generic noun only; compatibility not documented
CATLINK Scooper Young Pro-X: waste bags, sift filters, carbon filter box
generic noun only; compatibility not documented
Casa Leo Leo's Loo Too: waste bags
generic noun only; compatibility not documented
CatGenie CatGenie A.I.: Washable Granules, SaniSolution cartridge (120 cycles standard mode, 240 in cat-activation mode)
names at least one part by the maker's own name
HHOLOVE Automatic Litter Box Pro (60 L): deodorizers
generic noun only; compatibility not documented
HomerunPet CS106: waste bags, used-litter bags, fresh gel deodorizer, filters
generic noun only; compatibility not documented
Neakasa M1 Plus: waste bags
generic noun only; compatibility not documented
Neakasa M1 Plus Lite: waste bags (1 roll / 15 pcs included)
generic noun only; compatibility not documented
PETKIT PuraMax 2 (P9902): N50 2.0 deodorizer, waste bags
names at least one part by the maker's own name
PETKIT Purobot Max 3 (P9906): waste bags, standard + honeycomb sifters, N50 / N60 odor modules
names at least one part by the maker's own name
PETKIT Purobot Max Pro 2: PETKIT drawstring waste bags, N50 bin filter, N60 cylinder cartridge
names at least one part by the maker's own name
PETKIT Purobot Ultra (P9903): refill rings, N60 odor eliminator, trash bags
names at least one part by the maker's own name
PETLIBRO Luma: litter filters, carbon deodorizer, waste drawer liners
generic noun only; compatibility not documented
PetSafe ScoopFree Crystal Classic: ScoopFree crystal litter trays
names at least one part by the maker's own name
PetSafe ScoopFree Crystal Pro: ScoopFree crystal litter trays (disposable or reusable)
names at least one part by the maker's own name
PetSafe ScoopFree OpenSky: waste bin liners (model-specific SKU)
names at least one part by the maker's own name
PetSafe ScoopFree SmartSpin: waste bin liners, deodorizer packs
generic noun only; compatibility not documented
PetSnowy SNOW+: auto-sealing waste bags
generic noun only; compatibility not documented
Petcove PurrTek Max: waste bags, deodorizers
generic noun only; compatibility not documented
Popur X5: cardboard/roll-away bin liners
generic noun only; compatibility not documented
Whisker Litter-Robot 4: waste drawer liners, carbon filters, OdorTrap packs
names at least one part by the maker's own name · a generic alternative is documented in the manual, quoted below
Whisker Litter-Robot 5: waste drawer liners, carbon filter, OdorTrap packs
names at least one part by the maker's own name
Whisker Litter-Robot 5 Pro: waste drawer liners, carbon filters, OdorTrap packs
names at least one part by the maker's own name
Whisker Litter-Robot EVO: waste drawer liners, carbon filter
generic noun only; compatibility not documented

19 products state nothing. That is not the same as “no consumables”: it means the manufacturer does not tell you before you buy. ABRCT Open Top L1, CAST-500C open-top platform, CATLINK Scooper Open-X, CH-ICB015 90 L platform, DuckSky 65L+9L, Ellenpent Open-Top Automatic Litter Box and others.

11 manuals name a consumable

What the manuals say, word for word

Where a manual names the part, it usually also says whether you have to replace it. Each row below is the manual's own sentence, graded by what it says: required where the procedure needs it, if desired where the maker writes that. The one row that documents a generic alternative is the Litter-Robot 4's.

Casa Leo Leo's Loo Too Clumping clay litter only: Use only clumping clay litter. · required
Casa Leo Leo's Loo Too Drawstring waste drawer liner: Line waste drawer with the included bags. · required
PETKIT PuraMax 2 (P9902) Pet Odor Eliminator N50 2.0: Pet Odor Eliminator N50 2.0 Prevent odor spreading by decomposing odors in the waste bin. · required
PETKIT Purobot Max 3 (P9906) Pet Odor Eliminator N60: N60 Approx. every 60 days · required · approx. every 60 days
PETKIT Purobot Max Pro 2 N50 / N60 odor modules: When the N60 label turns red and displays 'N60 has expired', please replace it promptly. · required
PETKIT Purobot Max Pro 2 Trash bag: When it displays 'Waste bin full', please replace the trash bag with a new one. · required
PETKIT Purobot Ultra (P9903) High Performance Cat Litter Pad ULTRA P99035: High Performance Cat Litter Pad ULTRA P99035 is hereinafter referred to as litter pad. · required
PETKIT Purobot Ultra (P9903) Pet Odor Eliminator N60: N60 About two months. · required · about two months
PETKIT Purobot Ultra (P9903) Refill Ring: Replace with a new Refill Ring. · required
PetSafe ScoopFree OpenSky Waste bag: Line the waste drawer with one of the waste bags provided. · required
PetSafe ScoopFree OpenSky Waste drawer deodorizer: If desired, remove and replace the waste drawer deodorizer. · if desired — optional
PetSafe ScoopFree SmartSpin Waste drawer deodorizer: If desired, remove and replace the waste drawer deodorizer. · if desired — optional
Whisker Litter-Robot 4 Clumping litter, beads or crystals only: No, the Litter-Robot simply requires clumping litter. […] Litters that do not work in the Litter-Robot are strictly absorbent, non-clumping or loose-clumping litters, newspaper-based litters, pine-based litters, and absorbent wood pellet litter. · required
Whisker Litter-Robot 4 Waste Drawer Liner: You can use Litter-Robot custom-fit Waste Drawer Liners or any 37-49L trash bags. · required
Whisker Litter-Robot 4 Base Seal Strips: See Use and Care on page 29 to learn about the Carbon Filter, Base Seal Strips, Waste Drawer Liners
Whisker Litter-Robot 4 Carbon Filter: See Use and Care on page 29 to learn about the Carbon Filter, Base Seal Strips, Waste Drawer Liners
Whisker Litter-Robot 5 Clumping litter, beads or crystals only: Never put anything in the unit other than clumping litter or litter beads and crystals that are small enough to pass through the screen. · required
Whisker Litter-Robot 5 Pro Clumping litter, beads or crystals only: Never put anything in the unit other than clumping litter or litter beads and crystals that are small enough to pass through the screen. · required
Whisker Litter-Robot EVO Clumping litter, beads or crystals only: The Litter-Robot litter-sifting system requires clumping litter to work properly. […] DO NOT use litters that are strictly absorbent, non-clumping, loose-clumping, newspaper-based, or wood-based pellets. · required

A row without quotation marks was reassembled from a manual's table cells, whose text layer does not keep the cells apart; it is the maker's value, not a sentence the maker wrote.

3 of 44 state a replacement interval

How often — where a maker says

An interval is reported in the maker's own unit — days, months or cycles — and never converted. A cleaning interval is a different obligation from a replacement interval and is listed apart.

CatGenie CatGenie A.I. SaniSolution cartridge: SaniSolution cartridge (120 cycles standard mode, 240 in cat-activation mode) · required · 120 cycles standard mode, 240 in cat-activation mode
PETKIT Purobot Max 3 (P9906) Pet Odor Eliminator N60: N60 Approx. every 60 days · required · approx. every 60 days
PETKIT Purobot Ultra (P9903) Pet Odor Eliminator N60: N60 About two months. · required · about two months

Cleaning interval, stated:

Whisker Litter-Robot 4 Globe deep clean: We recommend cleaning the inside of the Globe every one to three months. · required · every one to three months

Consumable prices stated: 0 of 44. An interval without a price is not a cost, which is why no yearly figure appears on this page. 41 products state no replacement interval.

Withheld: PETKIT Purobot Max 3 (P9906) — Reassembled from unspaced table cells; may be paraphrased, never quoted. The figure sits in the 'When to Replace' column of a multi-column table whose cells the text layer does not separate, so it CANNOT be attributed to a component and must not be drawn as a per-part interval. Transcribed from the manual text layer (petkit_max_3.txt).

only 9 of 44 state this

Subscription-gated features

An app feature can be sold to you twice. Where a manufacturer documents which features need a paid tier, it is quoted here. Every documented gate is on an app feature; no source PURRINDEX holds says a machine stops cleaning without a subscription.

PETKIT Purobot Max 3 (P9906): PETKIT Care+ optional
PETKIT Purobot Max Pro 2: PETKIT CARE+ gates extended video playback
PETKIT Purobot Ultra (P9903): PETKIT Care+ optional for extended video history
PETLIBRO Luma: no subscription needed to operate; Video Cloud AI subscription gates AI analysis, event recording and historical playback
PetSafe ScoopFree SmartSpin: none stated; PetSafe advertises app health data with no subscription
Whisker Litter-Robot 4: Whisker+ gates recaps, 2-yr history, behavioural patterns
Whisker Litter-Robot 5: Whisker+ gates trend history and recaps
Whisker Litter-Robot 5 Pro: Whisker+ gates facial recognition, unlimited streaming, 2-yr history
Whisker Litter-Robot EVO: Whisker+ gates recaps and 2-yr history

35 products state nothing about subscriptions. PURRINDEX does not read that silence as “no subscription required”, and neither should you — it is the single most common gap in this category's documentation.

From the manuals, the terms:

PETKIT Purobot Max Pro 2 PETKIT Care+: After subscribing to the PETKIT Care+ service, HD video complete playback and other privileges are available. · if desired — optional
PETKIT Purobot Ultra (P9903) PETKIT Care+: PETKIT Care+ service is a virtual commodity and is non-refundable once purchased. · if desired — optional

Makers who state an absence, in their own words:

HomerunPet CS106 Wi-Fi: 2.4 GHz (optional; touch panel works without app)
PETLIBRO Luma no subscription needed to operate: no subscription needed to operate; Video Cloud AI subscription gates AI analysis, event recording and historical playback · if desired — optional
PetSafe ScoopFree SmartSpin none stated: none stated; PetSafe advertises app health data with no subscription · not needed

24 of 44 name an app

Apps, accounts and accessories

Naming an app is not the same as needing one. The documentation is graded from the bottom rung up: an app is named; it is on the setup list; a feature is gated behind it; the machine operates only after it is bound. Exactly 1 manual in the index puts the machine itself, rather than a feature, on the top rung.

Operates only after app binding, and the setup lists:

PETKIT Purobot Ultra (P9903) App binding before first use: Bind the app before first-time use. The device can operate only after successful binding. · required
PetSafe ScoopFree OpenSky Router, high-speed internet and smartphone: What you need: Wireless router (2.4 GHz) - High-speed internet connection - Smartphone · required
PetSafe ScoopFree SmartSpin Router, high-speed internet and smartphone: What you need: Wireless router (2.4 GHz) - High-speed internet connection - Smartphone · required

A setup list is a setup list. Neither PetSafe manual says the machine stops cleaning without a router, and PURRINDEX does not say it for them.

A separate accessory for a named function — and where it is built in:

PETKIT PuraMax 2 (P9902) PETKIT AIR PURIFIER SMART SPRAY: Deodorize: Click it to deodorize. * To perform this function, it is required to install PETKIT AIR PURIFIER SMART SPRAY. · for a named function
Whisker Litter-Robot 4 Carpet Tray: If placed on carpeting, the accuracy of the scale will be reduced; it is strongly recommended to use the Carpet Tray accessory available for purchase on Litter-Robot.com. · for a named function
Whisker Litter-Robot 5 Carpet tray (integrated): Litter-Robot 5 is equipped with an integrated carpet tray and can be placed on hard flooring or carpet. · not needed
Whisker Litter-Robot 5 Pro Carpet tray (integrated): Litter-Robot 5 is equipped with an integrated carpet tray and can be placed on hard flooring or carpet. · not needed
Whisker Litter-Robot EVO Carpet tray (integrated): Litter-Robot EVO is equipped with an integrated carpet tray and can be placed on hard flooring or carpet. · not needed

Feature-dependent, not required for cleaning: two app buttons on the PuraMax 2 and the weight scale's accuracy on the Litter-Robot 4 are what the accessory serves.

25 of 44 state a term

Warranty

PetSnowy SNOW+: 48 months
PETKIT Purobot Ultra (P9903): 24 months
PETKIT Purobot Max Pro 2: 24 months
PETKIT Purobot Max 3 (P9906): 24 months
PETKIT PuraMax 2 (P9902): 24 months
PETLIBRO Luma: 24 months
Neakasa M1 Plus: 24 months
CatGenie CatGenie A.I.: 24 months
Ellenpent Open-Top Automatic Litter Box: 24 months
Whisker Litter-Robot 5 Pro: 12 months
Whisker Litter-Robot 5: 12 months
Whisker Litter-Robot 4: 12 months
Whisker Litter-Robot EVO: 12 months
PetSafe ScoopFree OpenSky: 12 months
CATLINK Scooper Young Pro-X: 12 months
Casa Leo Leo's Loo Too: 12 months
HomerunPet CS106: 12 months
Popur X5: 12 months
Amazon Basics Automatic Self-Cleaning Litter Box (SMARTO M500): 12 months
M-series 95 L drum platform: 12 months
CAST-500C open-top platform: 12 months
CH-ICB015 90 L platform: 12 months
teweoa AS11: 12 months
Meowant MW-SC02 75 L: 12 months
Meowant MW-SC09 106 L: 12 months

7 manufacturers additionally state a trial or satisfaction period. Terms are read from the manufacturer's own page and can change; the date each was read is on every row.

Conditions a manual attaches:

Casa Leo Leo's Loo Too Purchase channel: Your Leo's Loo Too comes with a 1-year warranty when purchased from Casa Leo or an authorized reseller

Stated as a limit

What this page cannot tell you

It cannot tell you what any of this costs per year. That would need refill prices, replacement frequency and pack sizes, and manufacturers publish those inconsistently or not at all. PURRINDEX would rather report the obligation than invent the arithmetic. How PURRINDEX decides what to publish →

Manual sentences on this page were transcribed from the makers' manuals on 2026-09-11 and are verified verbatim against the manual text before the page is built; product-page values carry the date each page was read. PURRINDEX has not owned, refilled or subscribed to any of these products.