PolyPro *Best quality brush made by Schaefer brush since 1905 with tough, durable polypropylene bristles *Choice of homeowner or professional quality *The homeowner quality brush accomplishes the same thing as the pro quality. However, it is not built as strong and will not last as long *Simply put, the professional quality brush is built heavier making it stronger and more durable *Brush size should match diameter of the flue to be cleaned CLICK ON THE BLUE ARROW TO SELECT YOUR SIZE