NSS 33-9-089-1 17" Polyback Tufted Pad Driver for NSS Floor Scrubbers. A 16" diameter molded plastic block filled with short trim polypropylene filaments. These filaments are designed to work in conjunction with the supplied pad centering device, to securely hold your floor pad. Includes 3 mounted drive lugs. Fits NSS floor scrubber models including NSS Wrangler 33, 3330 Series Walk-Behind and the Champ 3329 Riding Scrubbers. Two pad drivers are required for most models. These are normally bundled to reduce freight costs. Priced Each. Replaces NSS 33-9-089-1. Our Part Number NSS 3390891.