Methodology
Robot vacuum brands rarely publish one clean page listing every part that fits every model. VacuumPartsFinder connects the pieces — official manufacturer part pages, plus patterns confirmed across independent retailer listings — into a compatibility record for each exact model and each exact part.
The core rules
- Compatibility is determined at the exact model × exact part level.
- Family pages are navigation and aggregated summaries only — they never maintain an independent compatibility verdict of their own. Every status shown on a family page is computed live from that family's individual model records, so it can't contradict what a model's own page says.
- Manufacturer exact model lists take priority over series names and product titles. A page titled "for the 600 series" is not treated as confirming every 600-series number unless its own text actually says so.
- We do not infer compatibility from a similar model name, a shared family, or a shared release window.
- A part can cross family boundaries when manufacturer evidence confirms the same SKU fits models we'd otherwise group separately — family membership is a browsing convenience, not a compatibility boundary in either direction.
- "Unknown" is shown when compatibility cannot be reliably confirmed — it is a real answer, not a placeholder, and often the exact thing worth knowing before ordering a part.
Compatibility is per part, not per family
Being in the same model series does not mean two vacuums share every part — often they share some and not others. Every migrated model gets its own page listing each part's status individually (Compatible, Not compatible, Depends on your unit, or Unknown), each with the source it's based on and the date it was checked.
Reverse lookup: search by part number
Already holding the part instead of knowing your vacuum's model number? Type its part number or SKU into the search box on the home page, or go straight to its page, to see every model our evidence confirms it fits — and every model it explicitly does not.
Confidence levels
Manufacturer-confirmed — the model is named directly on the brand's own product, support, or parts-catalog page.
Manufacturer cross-compatible — one official part page names multiple models across what would otherwise look like separate families.
Authorized retailer-confirmed — an official or brand-authorized retail listing states the compatibility.
Multiple retailers agree — no single official page covers this; at least two independent retailer listings consistently name the same exact model and part. We link the source listings on every page so the reasoning is checkable.
Unknown — checked, and no source we could find reliably confirms it either way. Never shown as compatible.
Why model numbers get grouped together
Manufacturers frequently reuse the same filter, brush, or dust bin across several model numbers released over a few years — but not always across every number in between. We call out explicitly when a similarly-named model is not part of a group; that mismatch is often the exact thing a normal search won't surface, which is why we show it as a "common compatibility trap" on the model or part page it applies to.
Keeping this current
Every compatibility record carries its own "last verified" date, independent of when the page itself was last rebuilt. Manufacturers do change part numbers and discontinue kits, so always cross-check the model number printed on your unit (usually on a label on the underside or inside the dust bin) before ordering.
Current scale
275 verified models, 79 parts (14 with a known manufacturer SKU), and 829 model-part compatibility records — 371 of them manufacturer-confirmed, 21 confirmed as NOT compatible, and 16 gated by a purchase date, market, or hardware revision. These numbers are computed from the live database at build time, not maintained by hand.