AL 7-08-03224-117" .065"/46 Heavy Grit Plus (Supergrit Equivalent) Scrub Brush with Drive Gimbal for American Lincoln 934, 935 walk behind scrubbers. .070" Diameter .065"/46 Heavy Grit bristle is our most aggressive filament. Used on unsealed concrete flooring for heavy duty scrubbing or stripping. Can be used as a stripping brush on sealed flooring. Removes heavy dirt and forklift tire markings. .070" Tynex-A or Hahls Nylon with Silicon Carbide Granules Embedded in the Bristle. Most machines require 2 brushes. Models 935i and 935i may require sectional scrubbing brushes instead of these 1-piece disc scrub brushes. Check your model before ordering. May also fit SR5730-34D. Weigh 9 lbs. each. Replaces AL 7-08-03224-1. Same as 7-08-03224. Our Part Number AL 7-08-03224-1