The AEG 90027751400 is a retail catalog number for the AEG QX9-1, a 21.6V 2-in-1 stick vacuum sold under multiple numeric article numbers through different retail channels. The QX9-1’s filtration architecture relies on the dust container, cyclone, and dual filter stack working as a connected system. When the dust container fills above its MAX line, the cyclone’s separation efficiency drops and partially separated debris re-enters the airflow path, depositing fines directly onto the pre-motor filter. This compresses what AEG describes as a one-month filter loading cycle into a shorter period, which is why monthly container checks and regular filter replacement are both necessary components of the QX9-1’s service schedule, not optional additions to a basic routine.
This service pack contains Plus.Parts® components for the QX9-1 filter system: 3 washable pre-motor filters, 3 washable post-motor filters, and 1 cleaning tool. All seven filter-system consumables in one order, both stages covered.
If you have a question about the AEG 90027751400 or the QX9-1 filter system, the VacuumReviews.eu team answers personally and works to resolve queries without unnecessary delay.
At a glance
- System-Level Service – Addresses both filter stages in one order, complementing the dust container emptying routine that keeps the cyclone performing correctly.
- Compatible Dimensions – Pre-motor and post-motor filters sized for the QX9-1’s dual filter housing, confirmed for the 90027751400 variant.
- Washable Construction – Both filter types are washable under cold water: monthly wash extends effective life to the three-month replacement point.





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