I've had a Dyson D24 Pet Ball for a few years now and the screw that holds the brushroll in place eventually corroded and wore out. Rather than buying a whole new head (about $75), I first tried to buy a "genuine" Dyson replacement part that didn't fit the roller. This part fits perfectly. I was tired of buying 'genuine parts' from third party suppliers but this was exactly what I needed and now my vacuum cleaner works like new.
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