PB 7836 17" .028" Poly Scrub Brush for Minuteman Power Boss Phoenix 33 and E33 Disc Brush Model Floor Scrubbers. A general medium duty scrub brush. Polypropylene is our most economical brush in this series. Poly brushes will not harm painted or epoxy painted floors. For high gloss epoxy floors, use our .012" soft nylon (PB 7816) or .020" soft poly (PB 7806). Fits Minuteman Power Boss Phoenix 33 walk behind scrubbers. Also fits Hakomatic B70/B90, B1050/TB1230, B1100/TB1230, B310R/TB1230 (85cm Models). Listed as Medium Duty / PPN 0.8 White. Comes prepped with 18 tooth splined clutch plate. Two brushes required. Priced Each. Replaces Minuteman Power Boss 7836, 99783600. Our Part Number PB 7836