AD 56505947 15" .022"/120 Scrub-Grit II Mid Grit Scrub Brush for Nilfisk Advance Scrubbers. Great for light to medium scrubbing and deep 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. .022" diameter Tynex-A or Hahls Nylon filament impregnated with 120 grit silicon carbide granules. Equivalent to Mid Grit and Scrub-Grit II (Usually red in color). These are not an exact match to OEM (240 Grit). Replaces blue or green floor pads. Filament is set in a 14" diameter solid heavy duty plastic molded block. Includes 3 drive lugs mounted around a 5.53" center hole. Fits Nilfisk Advance scrubbers and sweeper/scrubbers including Captor 4300, 4300-AXP, Nilfisk CR 1100, CR 1100B. 3 Required Per Unit. Priced Each. Replaces Nilfisk-Advance 56505947, 505947. Our Part Number AD 56505947