PETKIT PuraMax 2 Self-Cleaning Cat Litter Box (P9902) vs PetSafe ScoopFree Crystal Pro Legacy Self-Cleaning Litter Box, Uncovered (PAL00-16805)
These are side-by-side facts taken from each product guide: published specifications, strengths and caveats as their sources state them. This page is not a test, a ranking or a verdict about which model is better.
PETKIT PuraMax 2 Self-Cleaning Cat Litter Box (P9902)
Adult-cat homes with a hard, uncarpeted floor and clearance from walls
The PuraMax 2 is PETKIT's rotating-cylinder automatic box with an OLED panel, a 7 L sealed waste bin and an N50 odor eliminator. PETKIT's manual says cats under six months or under 1.5 kg are not recommended, and a Kitten Mode turns automatic cleaning off entirely. It needs a hard floor, a gap from the wall and clumping litter within a stated particle size.
Published specifications
- Manual: model P9902, 620 x 538 x 552 mm (24.41 x 21.18 x 21.73 in), about 10 kg (22 lb)
- Manual: cats younger than six months and cats under 1.5 kg are not recommended; listing FAQ adds a 10 kg (22 lb) maximum
- Manual: rated input 12V 2A; Wi-Fi and BLE; listing states 2.4 GHz
- Manual: no litter particles longer than 1.2 cm or over 3 mm diameter; FAQ names clay, tofu and mixed clumping litter
- Listing FAQ: 7 L waste bin, up to 15 days for one cat by PETKIT's lab result; N50 replaced about monthly
- PETKIT warranty policy: 2 years for PuraMax 2 bought on or after 1 Jan 2025 from PETKIT or an authorized US distributor
Strengths
- PETKIT publishes a full manual, a warranty policy and a model-specific FAQ, all naming P9902 or T4-2
- Runs from an on-unit OLED menu, so filling, levelling and cleaning do not require the phone
- Maintenance table names each washable part, its cleaning method and when to replace it
Caveats
- Not recommended for cats under six months or under 1.5 kg, and Kitten Mode disables automatic cleaning
- PETKIT's own documents give two different wall gaps (5 cm and 10 cm) and two cat-weight floors (3.3 lb and 3.5 lb)
- Carpets and mats are ruled out by the listing as interfering with the sensors
Read the full PETKIT PuraMax 2 Self-Cleaning Cat Litter Box (P9902) guide
PetSafe ScoopFree Crystal Pro Legacy Self-Cleaning Litter Box, Uncovered (PAL00-16805)
One or two healthy adult cats under 15 lb in a dry, low-humidity room
The ScoopFree Crystal Pro Legacy rakes solid waste into a covered trap twenty minutes after your cat leaves, using a disposable tray pre-filled with crystal litter that you throw away whole. PetSafe's manual says to use only its own trays and litter and warns that anything else may void the warranty. There is no app: a mechanical health counter tallies rake cycles.
Published specifications
- Maker page: item model PAL00-16805, uncovered 27.6 x 19.1 x 6.2 in; hooded versions are separate models
- Manual: rake runs 20 minutes after the cat leaves; timer resets if the cat returns; manual rake button on top
- Manual: suits cats under 15 lb; single or multi-cat, with more boxes recommended above two cats
- Manual: kittens under six months - leave the unit unplugged and scoop until six months old
- Manual: only PetSafe ScoopFree disposable crystal trays; no clay, natural or other crystal litter
- Manual: tray replacement chart gives 20-30, 10-15 and 7-10 day intervals; one-year limited warranty
Strengths
- Whole-tray disposal means no scooping, no washing a drum and no litter to pour
- PetSafe publishes the full manual, the LED code list and the exact tray part numbers for this model
- Mechanical health counter tallies every rake cycle without an app, account or Wi-Fi
Caveats
- Locked to PetSafe's own crystal trays as an ongoing cost, and other litter may void the warranty
- Manual says to keep it unplugged for kittens under six months and calls it unsuitable for very old or incapacitated cats
- Humid rooms shorten tray life, so a bathroom placement raises the running cost
How to choose between them
Choose the PETKIT PuraMax 2 Self-Cleaning Cat Litter Box (P9902) if your situation matches: Adult-cat homes with a hard, uncarpeted floor and clearance from walls. Its main caveat: Not recommended for cats under six months or under 1.5 kg, and Kitten Mode disables automatic cleaning.
Choose the PetSafe ScoopFree Crystal Pro Legacy Self-Cleaning Litter Box, Uncovered (PAL00-16805) if your situation matches: One or two healthy adult cats under 15 lb in a dry, low-humidity room. Its main caveat: Locked to PetSafe's own crystal trays as an ongoing cost, and other litter may void the warranty.
Both entries repeat what each guide records. Confirm the model, included parts and availability on the current listing before ordering.
Primary sources
- PETKIT PuraMax 2 user manual (model P9902 / T4-2), EN V1.3 Source for PETKIT PuraMax 2 Self-Cleaning Cat Litter Box (P9902)
- PETKIT manual downloads index linking the PuraMax 2 manual Source for PETKIT PuraMax 2 Self-Cleaning Cat Litter Box (P9902)
- PETKIT Limited Warranty Policy naming PuraMax 2 in the 2-year upgrade list Source for PETKIT PuraMax 2 Self-Cleaning Cat Litter Box (P9902)
- PuraMax 2 FAQ sheet supplied with the Amazon listing Source for PETKIT PuraMax 2 Self-Cleaning Cat Litter Box (P9902)
- PetSafe ScoopFree product manual SFE400-2352/1 covering PAL00-16805 Source for PetSafe ScoopFree Crystal Pro Legacy Self-Cleaning Litter Box, Uncovered (PAL00-16805)
- PetSafe product page for the ScoopFree Crystal Pro Legacy, item model PAL00-16805 Source for PetSafe ScoopFree Crystal Pro Legacy Self-Cleaning Litter Box, Uncovered (PAL00-16805)
Primary sources checked .