The spring loaded plastic button on top of the hose in our DC25 vacuum recently broke after years of use. This required replacing the entire hose assembly as the plastic fitting holding the knob itself cannot be removed and replaced. for an additional $3 on Dyson's own website, plus you get shipping on top of that, which I didn't have to pay when I bought from Revain). It fits perfectly and is identical in every way to the original hose that came with the kit. Vacuum. This is a simple swap that you can easily do yourself, that's all there is to say.