Hard E-brushes are available in diameters ranging from 4" to 16" and are designed for use with our Flexible Shafts. For rectangular / round ducts
The round ball design on the end of the brush helps it to flow much easier through 90-degree elbows.
Hard bristle brushes are better suited for more heavily obstructed ducts while soft bristles brushes are suitable for vents and ducts with light dust buildup.
