PB 3300795 14" .050"/80 Grit Scrub Brush with Lugs for Power Boss Scrubbers. Our second heaviest grit scrub brush for aggressive scrubbing and stripping jobs. Designed for cleaning packed dirt and heavy debris on unsealed concrete, older sealed concrete and asphalt surfaces. Long lasting DuPont Tynex-A or Hahls Nylon filaments are impregnated with large 80 grit silicon carbide granules and are arranged in a 6 row configuration on a solid plastic molded brush block. For a heavier grit brush, search for 3303741, .070"/46 Grit. Not recommended for polished concrete, painted or epoxy painted flooring. Usually black in color. 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 3313125. Most machines require 3 brushes (4 if using a side scrub brush). Priced each. Replaces Minuteman Power Boss 300795, 3300795. Our Part Number PB 3300795