NSS 33-9-090-1 17" Scrub-Grit Light Abrasive Scrub Brush for NSS Wrangler 33, 3330, Champ 3329 Floor Scrubbers. Slightly abrasive .022" diameter Tynex-A or Hahls Nylon filament impregnated with 120 grit silicon carbide granules for everyday cleaning jobs. These brushes can be used on polished, sealed or unsealed concrete, tile, quarry tile, travertine, rubber, or on older painted epoxy flooring with medium to light soils. Usually grey in color with a barely notable grit textrue. We also offer these in a lighter .018"/500 grit or heavier .035"/180, .050"/80 grit (NSS 3390521), or our heavy .065"/46 grit for specific jobs. Please call 800-277-3780 for details or reference your preferred grit in the Special Instructions box at checkout. Fits NSS Wrangler 33 and 3330 walk behind scrubbers and the NSS Champ 3329 riding floor scrubber. 16" brush block, 17" scrub path. Each machine requires two brushes. These are commonly bundled together to reduce freight. Priced each. Replaces NSS 3390901, 33-9-090-1. Our Part Number NSS 33-9-090-1