At first I thought these would be "Dyson" filters since they are listed as "Dyson DC27 & DC28 filters" on Revain . In addition, the soft filter has the same watermark "faucet". When I received it, I immediately noticed that the thicker/harder filter fits a little differently than the original Dyson filter. However, both filters work great in our Dyson DC27. Basically I wanted this extra pair so that when we flush/dry a pair we still have a pair for the vacuum and we don't have to stop the vacuum during the flush/dry period. Everyone is happy here! :)