PB 3315388 14" .018"/500 Soft Grit Scrub Brush for Minuteman Power Boss Floor Scrubbers. Our lightest grit scrub brush in this series. Long lasting .018"/500 grit scrub brushes can be used for light scrubbing of sealed and epoxy painted flooring. These brushes have the advantage of long life as compared to their Nylon or Poly counterparts. Will not damage older painted or older epoxy painted flooring. Do not use on newly painted flooring or those with a high shine. These brushes are also great for lighter cleaning of small grout lines. Includes new style molded "powerdrive" clutch plate set up. Some older models require old style brushes with 3 mounting lugs around a 5.5" center hole. Please check your model before ordering. Fits many Minuteman and Power Boss Scrubbers including 82 Series (Monitor 82, CSS/82, TSS/82 Commander 82), 80 Series, 82 Series, 85 Series, 4000, 9082, CP2832 and SCV 28 models which require 14" diameter disc scrub brushes. Most machines require two, three and maybe 4 disc brushes per unit. Some units use these as optional side scrub brushes. Priced Each. Replaces Minuteman Power Boss 3315388, 315388. Our Part Number PB 3315388