PB 281527 28" .070"/46 Grit Super Abrasive Cylindrical Scrub Brush for Minuteman / Power Boss Admiral 28 Plus, SCV28 Riding Scrubbers, Phoenix 28XL, CP 28/32 and EasyScrub ES 28/32 28" Cylinder Brush Model Walk-Behind Scrubbers. Our heaviest grit for aggressive scrubbing of unsealed or older sealed concrete floors with heavy dirt and debris. The heavy grit brushes can also be used for stripping finish and sealers from sealed concrete flooring. Long lasting DuPont Tynex-A or Hahls Nylon impregnated with large 46 grit silicon carbide granules are arranged in a high density configuration on a solid plastic molded brush core. For a slightly less aggressive brush, search for 281526, .050"/80 Black Grit. Not recommended for polished concrete, painted or epoxy painted flooring. Usually brown, orange, purple or grey in color. Actual measurement of 27-1/4" (Brushes are staggered on scrubber). Fits Minuteman / Power Boss Admiral 28/32 (28" cylinder), Admiral 28 Plus, Phoenix 28XL, SCV 28/32 (28" Cylindrical) Brush Models which include SCV28C, SCV28CQP, SCV28CPLUS, ADMER28C, ADMER28CPLUS, and ADMER28CQP. Also fit CP 28/32 and ES 28/32 Walk-Behind Models which include CP28, ES28, CP 28C, ES28C, CP28CQP, ES28CQP, CP28CQPIW and ES28CQPIW. These may fit other models. Some machines require disc brushes or the longer 32" cylinder brushes. If your existing brushes are splined drive (8 splines on one side and 9 on the other), use our PB 7094 (.035 Mid Grit). These brush cores have two notches on once end. Please check your model and drive set up before ordering. Two cylindrical brushes required per unit. Priced each. Replaces Minuteman / Power Boss 281527. Our Part Number PB 281527