WI 02441 / 86000450 20" .065"/46 Grit Scrub Brush for Windsor Floor Scrubbers. Long lasting .065" diameter Tynex-A or Hahls Nylon filament is impregnated with large 46 grit silicon carbide granules for heavy duty scrubbing of tile, sealed concrete, unsealed concrete, quarry tile, terrazzo, vinyl flooring with heavy dirt and debris. Also used as a stripping brush. Not recommended for newly painted or epoxy painted flooring. 20" diameter block includes newer style 6-point spring loaded clutch plate. Fits Windsor scrubbers including Saber Compact 20 (SC20, SC20T, SCX20T), Chariot I-Scrub 20 Disc brush models (Will not fit Compact C17J / C17BJ), and Trident Compact 20 (with newer larger 6pt plate). For a softer brush in this series, call us for .022"/120 Grit or softer .018"/500 Grit. For a more aggressive brush, call about our .050"/80 Grit or .065"/46 Grit stripping brush. One brush required on most models. Replaces Windsor 02441, 8.600-045.0. Our Part Number WI 02441, WI 86000450