13 Inch disc 46 grit abrasive scrub brush. Alternate brush option that fits the Tennant 5400 (26"), T500/T500e (26"), T7 (26"), T7AMR (26"). This is the most abrasive brush available for the Tennant 5400. Compare to Tennant 385924, Tennant 1223990, Tennant 1220228 (Super Abrasive 46 Grit)

Fits Aftermarket Tennant 385924 46 Grit (779231B)