AD 56505833 15" .018"/500 Dyna-Scrub Light Abrasive Disc Rotary Scrub Brush for Nilfisk Advance Scrubbers. Our lightest grit scrub brush for light to moderate soils. Great for light to medium scrubbing and top cleaning of sealed or unsealed concrete flooring or even marble and quarry tile, slate, VCT and terrazzo flooring surfaces. Can also be used for scrubbing tile with grout lines less than 1/2" in width. 500 grit brushes can also be used for spray buffing tile flooring. Replaces white or red floor pads. .018" diameter Tynex-A or Hahls Nylon filament impregnated with the small 500 grit silicon carbide granules. Equivalent to AgLite Grit, Dyna-Scrub and Mal-Grit Lite (Usually light gray, light green or red 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, Condor XL / CS8000 Series (Side Scrub Brushes). These brushes have a 5-1/2" center hole. Many machines require two, or in some cases, 3 or 4 brushes. Please check your machine before ordering. Often listed as 16". Replaces Nilfisk-Advance 56505833, 505833. Our Part Number AD 56505833