I have used cheaper replacement brushes and found that they wear out much quicker; So again I paid a slightly higher price for them and found that they last long enough to more than justify the cost. Update December 2018: After my first check, I found some decent quality, much cheaper alternatives. Amyehouse makes high quality side brushes and HEPA filters while Neutop makes high quality debris removal rollers. The cost savings are significant. See my reviews on these products for more information. I am in no way affiliated with any of these manufacturers.
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