AD 56410187 Neoprene Disk Squeegee Set for Nilfisk Advance. 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. All Deck Blade Kits include both deck and skirt assembly blades. Fits popular Nilfisk Advance Hydro-Retriever 3800 / BR 1100 Disk Deck Blade Kits (before SN150032). Priced Each. Replaces Nilfisk Advance 56410187. Our Part Number AD 56410187