Rotary Brush, Application Cleaning, Scrubbing, Fits Machine Size 20 in, Shape Round, Bristle Color Black, Brush Diameter 20 in, Trim Length 1 3/4 in, Block Size 20 in, Compatible with Manufacturer Part Number T300, T300e, Bristle Diameter 0.05 in, Compatible with Grainger Part Number Not Applicable, Features Optimal Operation with Tennant Machines