AD 56116708 Urethane Rear Squeegee Set for Nilfisk Advance. Fits Advance models SC6000 34D, 36C, 40D. Measures 51 3/8" x 3 1/8". Polyurethane blades are commonly used for special situations where heavy oils or chemicals exist. These urethane blades are also very abrasion resistant and can be used in glass manufacturing facilities, bottling plants, or other areas where broken glass may be an issue. These can also be used on concrete sidewalks and similar abrasive surfaces. Priced Each. Replaces Nilfisk Advance 56116708. Our Part Number AD 56116708