TN 240250 20" .022 Poly Scrub Brush with Lugs for Tennant, and Blue Star 20" Walk-Behind Floor Scrubbers. General duty .022" soft/medium polypropylene filament. Poly brushes can be used on all surfaces without the risk of damage or scuffing. Medium poly brushes can be used on newly painted or epoxy painted flooring. For ultra high gloss urethane flooring, you may want to try the soft Nylon brushes. 19" diameter scrub brush block has three mounting lugs for easy installation / removal. 20" scrub path. Fits Tennant branded floor equipment including Tennant 5200 (Battery and Electric Models), Nobles Speed Scrub 2001 (Battery and Electric Models) , 2001HD, WB-20E, BA-2000B, FS-2000 (Battery and Electric Models), and BlueStar 20" Automatic walk-behind floor scrubbers. One brush required per unit. Priced Each. Replaces Blue Star, Nobles, Tennant 240250. Our Part Number TN 240250.