This item is the replacement dusting brush that is designed to work with all Hoover WindTunnel upright models, including all self-propelled machines. This brush also will work with many other Hoover models, including the Hoover Elite, Tempo, V2, and many other models that use friction to secure the attachment. This does not have the plastic knob on the neck to secure it to the wand/hose. Genuine Hoover Part.