OEM and rebrand transparency

Shared platforms

Some automatic litter boxes are sold under several brand names at different prices. Where model codes, declared manufacturers, dimensions and listing text indicate a shared platform, PURRINDEX records one product rather than several — and shows the evidence, so you can decide whether the premium is buying you anything.

How to read this. "Appears to share a documented platform" means exactly that: the published evidence is consistent with common hardware. It is not an allegation about any seller, and PURRINDEX does not claim the units are identical. Where the listings themselves disagree — as they do on weight and maximum cat weight in the M-series — that disagreement is published too.

The most useful consumer fact in this index: within the M-series family, the same claimed 95-litre platform was observed selling in the Under $150 band under one brand name and in the $150–250 band under another — for what the evidence indicates is one piece of hardware. Observed 2026-09-01. PURRINDEX shows bands, never live retail prices or marketplace data.

Shared platform

M-series 95 L drum platform

SHARED PLATFORMM-series 95 L drum platformCumrige M2 — $150–250Fumoi M4 — $150–250Paruuntys / ovesong M5 — Under $150
  • Cumrige M2 — observed in the $150–250 band
  • Fumoi M4 — observed in the $150–250 band
  • Paruuntys / ovesong M5 — observed in the Under $150 band

What this means for you: members of this family were observed in 2 different price bands — $150–250, Under $150. If the hardware is common, the band you choose may be buying you a label.

Evidence
Sequential model codes on one platform: Cumrige M2, Fumoi M4, Paruuntys M5. Paruuntys listing declares brand and manufacturer 'ovesong', not Paruuntys. All three share an identical Amazon title template ('Safety Sensor, App Control,... Detachable waste trays, Self cleaning litter box for Multiple Cats, Safety Protection, 2 Roll Garbage Bags') and the same 95 L capacity claim.

cumrige.com publishes M2 and M4 instruction manuals and an M2-vs-M4 comparison; paruuntys.com and fumoi.com resolve but publish no specification sheet

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Shared platform

CAST-500C open-top platform

SHARED PLATFORMCAST-500C open-top platformMintakawa CAST-LB500C — Under $150UPFAS CAST-500C — Under $150
  • Mintakawa CAST-LB500C — observed in the Under $150 band
  • UPFAS CAST-500C — observed in the Under $150 band
Evidence
Manufacturer part numbers CAST-LB500C (Mintakawa) and CAST-500C (UPFAS); identical Amazon titles ('APP Control - Weight Monitoring - Ultra-Quiet... Safe Anti-Pinch [Assembly Required]'); same declared dimensions 22.44 x 18.23 x 19.84 in.

upfas.com resolves; mintakawa.com does not resolve (DNS failure) - no manufacturer documentation located for either

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Shared platform

CH-ICB015 90 L platform

SHARED PLATFORMCH-ICB015 90 L platformWARCAT CH-ICB015 — $150–250GUNJI — $150–250
  • WARCAT CH-ICB015 — observed in the $150–250 band
  • GUNJI — observed in the $150–250 band
Evidence
Identical Amazon title template ('Self-Cleaning Litter Box - 90L, APP, Sensors, Gray | 90L large capacity for multi...') under two brand names. WARCAT declares model CH-ICB015. Google autocomplete carries the query 'automatic litter box model ch icb015', indicating the OEM code is widely rebranded.

warcat.com does not resolve (DNS failure); no manufacturer documentation located

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Shared platform

XL open-top, 'Multi-Sensor Safety'

SHARED PLATFORMXL open-top, 'Multi-SensorSafety'4 further listings — Under $150
  • 4 further listings — no seller-declared model name, observed in the Under $150 band
Evidence
Three listings share an identical title template ('Self Cleaning Automatic Open Top XL Multiple Cat Litter Box, White | Multi-Sensor Safety, Ultra...') at the same Under $150 price.

no brand, no manufacturer, no documentation

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