PB 3300791 14" Wire Scrub Brush with Lugs for Power Boss Scrubbers. Wire scrub brushes are commonly used for scrubbing packed dirt and debris, stripping of painted floors, and for other special use jobs. The wire scrub brushes are great for these heavy duty jobs but the filament life is not as great as the heavy duty grit brushes which perfrom the same tasks. The wire brushes are a cheaper alternative to the Tynex-A or Hahls grit brushes. Include 3 drive lugs (arranged around a 5-1/2" center hole). These are the older style scrub brushes used on models including 62, 65, 78, 80 and 82 Series scrubbers. Please check your model before ordering. For the newer Powerdrive style clip-on brushes, use 3313131, .012 Wire. Most machines require 3 brushes (4 if using a side scrub brush). Priced each. Replaces Minuteman / Power Boss 3300791