AD 56407596 Neoprene Squeegee Set for Nilfisk Advance(3800 / BR1100). Neoprene is used in cases where the standard duty tan gum blades won't hold up and distort. Neoprene blades are naturally chemical and oil-resistant and can be used in food processing plants, chemical plants and areas where tan gum blades might be affected by chemicals. They are also naturally chemical resistant and can be used where caustic chemicals exist. Fits, If your model has two vacuum motors, Nilfisk Advance Hydro-Retriever 3800, 3800B (Battery), 3800D (Disc) and 3800C (Cylinder) riding floor scrubbers. Also fits Nilfisk BR 850, 850C, 850C-XL, 1100, 1100C, 1100C-XL riding floor scrubbers. Contains the front and rear squeegee. The front squeegee measures 44 4/7" x 3" and the rear measures 45 1/8" x 3 1/3". If it does not have two vacuum motors, please use AD 56407597. These blades fit standard units with one vacuum motor. Priced per kit. Replaces Nilfisk Advance 56407596. Our Part Number AD 56407596