AD 56505832 15" .050"/80 Grit Super Abrasive Disc Rotary Scrub Brush for Nilfisk Advance Scrubbers. Our second heaviest grit scrub brush for the most stubborn soils. Great for heavy duty scrubbing or stripping of unsealed concrete flooring or aging sealed flooring surfaces. .050" diameter Tynex-A or Hahls Nylon filament impregnated with 80 grit silicon carbide granules. Equivalent to Dyna Grit, Nylo-Grit, and Mal-Grit (Usually black in color). Filament is set in a 15" diameter solid heavy duty plastic molded block. Includes 3 mounting drive lugs. Fits Nilfisk Advance scrubbers including Condor 4530D (with 45" scrub deck option), Warrior 32D, Warrior AXP, Warrior ST (32" Disc Models), BA 855, Convertamatic 32D, Adgressor 3210D, Adgressor 3210D-AXP, BR 800S, BR 800S EDS, Advenger 3220D, Advenger 3220D-AXP, BR 850S, BR 850S EDS, Mobilmatic 64, Mobilmatic 6400, and Condor XL / SC8000 Series (RH Side Scrub Brush). These brushes have a 5-1/2" center hole. Many machines require two, or in some cases, 1 or 3 brushes. Please check your machine before ordering. Often listed as 16". Replaces Nilfisk-Advance 56505832, 505832. Our Part Number AD 56505832