WI 02404 / 86000200 12" .035" Mid Grit Scrub Brush for Windsor Floor Scrubbers. Extremely durable, .035" diameter Hahls or DuPont Tynex-A or Hahls nylon filaments are impregnated with 180 grit silicon carbide granules. These mid-grit scrub brushes are great for every day scrubbing of unsealed concrete, ceramic, tile, rubber, terrazzo, vinyl and quarry tile. The smaller diameter allows these brushes to reach grout lines less than 1/2" in width. Commonly blue in color, these .035"/180 grit scrub brushes outlast and replace blue floor pads. Listed as 12" Mild Grit SD. These brushes should not be used on newer painted and epoxy painted flooring such as airport hangars, automotive showrooms, and similar delicate flooring surfaces - Use a softer filament such as our .016" diameter level white nylon filament (WI 02402-16). 11.75" diameter molded plastic brush block. This plastic block includes the Windsor style spring-loaded clutch plate system to attach to the brush drive motor gimbal. Fits Windsor floor scrubber models including Saber 24, Saber Glide 36, Chariot iScrub 24 and others. Windsor manuals usually contain two to three different with models contained in one manual. Please check your manual / brush block diameter before ordering. Listed as 12" Mild Grit SD. Two or three scrub brushes may be required per unit. Priced Each. Replaces Windsor 02404, 8.600-020.0. Our Part Number WI-02404, WI-86000220