PB 3323797 20" .030" Nylon Powerdrive Style Scrub Brush for Minuteman / Powerboss TC/1, VS1000 Scrubbers. Durable .030" Nylon filament is great for general duty scrubbing of most flooring surfaces including sealed concrete, painted and epoxy painted floors, tile, quarry tile, vinyl, rubber and stone. The .030" diameter is stiff enough to clean moderate soils but will not damage older painted or epoxy painted flooring. Commonly white or black in color. Includes new style molded "powerdrive" clutch plate set up with attachment hardware. Fits many Minuteman and Power Boss Scrubbers including TC/1 and VS1000. Most machines require two scrub brushes per unit. Priced each. Replaces Minuteman / Power Boss 3323797, 323797