CL 30261A 33" 12SR .040" Stiff Poly Cylinder Scrub Brush for Clarke Encore 33HD Scrubbers. Medium/Stiff .040" polypropylene filament for economical general duty scrubbing of unsealed, sealed or polished concrete flooring, painted and epoxy painted flooring and sealed or painted concrete flooring with moderate debris. These cylindrical brushes can also be used on tile, stone, terrazzo and other stone surfaces. Will not damage older painted or epoxy painted flooring surfaces. Poly brushes do not wear as long as nylon. Soft Nylon (30262A) brushes are recommended for newly painted or epoxy painted flooring. For a stiffer Nylon, use CL 30262-1, .030" Nylon. Usually white or black in color. Manufactrued on 31" heavy duty plastic brush cores (These units require two slightly offset 31" cylinder scrub brushes to make a 33" wide scrub path). Fits Clarke Encore 33HD scrubbers. These machines require two cylinder brushes. Priced each. Replaces Clarke 30261A, 30261B. Our Part Number CL 30261A