AD 56409724 Neoprene Side Deck Skirt Blade for Nilfisk Advance Floor Scrubbers. A 3/8" thick oil and chemical resistant black neoprene side disc scrub deck skirt side blade. 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. Measures 27-1/2" x 4-1/2" with 3 mounting slots. Fits Nilfisk Advance Hydro-Retriever 3800 (Model 56409000 Only) and Nilfisk BR 1000 (Model 56409629 Only) disc brush model riding floor scrubbers. Please check your model number before ordering. We also offer this blade in tan gum rubber (use AD 56409103). Works in conjunction with the front deck blade (AD 56409403) and the rear deck blade (AD 56409401). Two deck side blades required per unit. Priced Each. Replaces Nilfisk Advance 56409724. Our Part Number AD 56409724.