36" 18 Single Row .022" / 120 Mid-Grit Main Scrub Brush for Tennant 5680-900C, 5700-900C, 7200-900C, and Tennant T15 Scrubbers. We offer this special made mid-grit cylinder scrub brush for the 900mm cylinder brush series of Tennant scrubbers. The mid grit scrub brush is perfect for medium scrub jobs on sealed and unsealed flooring with moderate soiling. Aggressive enough for most cleaning tasks without damaging flooring. Can be used on older painted and epoxy flooring. .022" bristle diameter, 120 grit granules. Most machines require two cylinder scrub brushes. Priced Each.