PB 3315495 16" Power Drive Pad Driver Assembly for Minuteman / Power Boss Scrubbers. Short trim polypropylene filaments, in conjunction with a pad grabbing centering device, holds your floor pad securely to the scrubber. 16" diameter durable molded plastic block. Includes new style molded "PowerDrive" clutch plate set up. Some older models require old style pad drivers with 3 mounting lugs around a 5.5" center hole (if you have the 3 lug set up, search for 3305373, 16" Pad Driver with Lugs). Please check your model before ordering. Fits many Minuteman and Power Boss Scrubbers including 88 Series, 90 Series (Monitor 90, CSS/90, ISS/90, TSS/90 Commander 90), Model 90, Model 95, Core 50, 5500, 9090, SB/32, Admiral 28/32 (32" Disc Models), Admiral 32 Plus (32" Disc Models), ES 28/32 (EasyScrub 32" Disc Models), CP 28/32 (32" Disc Models), SCV 28/32 (32" Disc Models), Phoenix 32XL (32" Disc Models), Phoenix 34 (32" Disc Models) and many others which require 16" diameter clip-on disc scrub brushes. Most machines require two, three and maybe 4 disc brushes or pad drivers per unit. Some units use these as optional side scrub pad drivers. Replaces Minuteman / Power Boss 3315495, 315495. Our Part Number PB 3315495