18 Inch disc 46 grit abrasive scrub brush. Alternate brush option that fits the Tennant 5680/5700 (36"), 7200 (36"), T15 (36"), T16 (36"). This is the most abrasive brush available for the Tennant 5680/5700, Tennant 7200, Tennant T15 and Tennant T16. Compare to Tennant 1220190 (Super Abrasive 46 Grit)

 Fits Aftermarket Tennant 1220190 46 Grit (774631A)