AD 56314779 35" 16 Single Row Stiff Nylon Cylindrical Scrub Brush for Nilfisk Advance Adgressor 3520C, BR 950SC Series Scrubbers. Durable and long lasting stiffer .022" Nylon filament is great for medium duty scrubbing jobs on sealed, unsealed and harder sealed sensitive flooring . The stiffer Nylon bristle is great for scrubbing sealed and unsealed concrete as well as tile, stone, and terrazzo flooring. Designed for general duty scrubbing tasks where light to moderate debris is present. Nylon filaments outlast general duty polypropylene brushes. Equivalent to Hard Nylon, Nylon, Nylex. 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 56505754, Stiff Poly). Please check your model before ordering. Replaces Nilfisk Advance 56314779, 314779. Our Part Number AD 56314779