AD 56116045 36" .050"/80 Black Grit Cylinder Scrub Brush for Nilfisk Advance SC6000 36C Models. Durable and long lasting stiff .050" diameter Tynex-A or Hahls Nylon is impregnated with 80 grit silicon carbide granules. The .050" black grit brushes are perfect for aggressive scrubbing of concrete, older sealed concrete, older epoxy painted flooring. For more slightly less agressive scrubbing jobs, use our most popular mid-grit brush in the series (AD 56116044). Fits Nilfisk Advance SC6000 36C cylinder brush models. Measures 36" x 7.1". Two brushes are required per unit. Priced Each. Replaces Nilfisk Advance 56116045. Our Part Number AD 56116045.