PB 281529 28" .035"/180 Grit Mid-Grit Abrasive Cylindrical Scrub Brush for Minuteman / Power Boss Admiral 28/32, Admiral 28 Plus, Phoenix 28XL, SCV28 Riding Scrubbers, CP 28/32 and EasyScrub ES 28/32 28" Walk-Behind Cylinder Brush Models. Our .035" diameter, 180 grit filament is great for general duty, every day scrubbing tasks on unsealed concrete, sealed concrete, older painted and epoxy painted flooring and most tile and stone surfaces. Much softer than the aggressive .070"/46 grit (281527) brushes. Long lasting DuPont Tynex-A or Hahls Nylon filament impregnated with 180 grit silicon carbide granules. Equivalent to Scrubgrit 180GR. Commonly blue or grey in color. Not recommended for newly painted or epoxy painted flooring. These can be used on older painted flooring. 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 281529. Our Part Number PB 281529