Checklist before you buy a part

Same checks official stores and repair shops expect — without guessing aftermarket fit.

1. Copy the model printed on the robot or in the app, not the nickname on the box.
2. Match the part type and official item number when one exists (example: 4639161).
3. Read Does not fit rows. Combo j7+ is excluded from the e/i/j filter pack.
4. Buy from the brand shop after the verdict, or a retailer link only if the label is Confirmed or Likely.