PB 381036 19" .018"/500 Grit Dyna-Scrub Soft Grit Disc Scrub Brush for Minuteman / Power Boss Scrubbers. Our lightest .018" diameter 500 grit scrub brush. 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 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 Minuteman drive gimbal. 19" block diameter. Commonly listed as a 19" or 20" brush. Equivalent to Dyna-Scrub (Light Blue), Mal-Grit Lite (Red), and Light Green Grit. Fits Hako / Minuteman / Multi-Clean scrubbers including Hako-Matic B53, Minuteman 200 (200B, 200E, 200TD, 200X, 200XTD), 205, 38B, 380, and 3800 scrubbers which require disc scrub brushes. Model 3880 can also take cylinder brushes. Please check your model before ordering. Two brushes required per model except for model 200/205. Priced each. Replaces Minuteman 381036