They look a lot like a brand name that I almost paid for (I hate paying full price for everything). I noticed that the round plastic mold that attaches to the bottom of the foam filter is only a millimeter smaller than the one that came with the original filter. Not a big deal, but it does mean the filter just sits at the bottom of the mount instead of getting stuck there with no air gap. I've vacuumed a lot since getting these replacement parts and I can't tell the difference in performance. Brand filters and universal filters. I will definitely buy them again.
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