AD 56314781 35" 16 Single Row .035"/180 Mid Grit Cylindrical Scrub Brush for Nilfisk Advance Adgressor 3520C, BR 950SC Series Scrubbers. Long lasting 180 grit impregnated Tynex-A or Hahls Nylon filament designed for general duty scrubbing jobs. .035" bristle diameter is great for scrubbing sealed and unsealed concrete as well as tile, stone, and terrazzo flooring. Not as aggressive as the .070" or .050" grit brushes. Equivalent to Scrub-Grit III, MidLite Grit, and Clean-Grit. Fits Nilfisk Advance Adgressor 3520C, 3520C-AXP, BR 950SC, and BR 950SC EDS cylindrical brush scrubbers. For 35" machines only. Actual measurement 33.875". Two required per machine. Priced each. Some models (3520D / BR 950S) require three 11" disc scrub brushes (search for 56505758). Please check your model before ordering. Replaces Nilfisk Advance 56314781, 314781. Our Part Number AD 56314781