TN 1220181 / 385907 11" .065"/46 Heavy Grit Abrasive Bristle Disc Scrub Brush with Clutch Plate for Tennant 5400-24D Scrubbers. Tynex-A or Hahls Nylon is embedded with silicon carbide granules for an aggressive stripping and heavy duty scrubbing brush. Designed for unsealed concrete and sealed concrete with heavy soils. Clutch plate wire springs ends "clipped" on 11" versions. Priced Each. Replaces Tennant 1220181 / 385907, Carlisle/Flo-Pac 884311, 36884311 - Our Part Number TN 1220181 / 385907