AD 56409428 Vac Motor Hose for Nilfisk Advance HR 3800 / BR 1000 Riding Floor Scrubbers. A reinforced vac motor suction hose with one cuff. Fits Advance Hydro-Retriever 3800 (Model 56409000) and Nilfisk BR 1000 (Model 56409629) riding floor scrubbers. One vacuum motor hose required per unit. Priced Each. Replaces Nilfisk Advance 56409428. Our Part Number AD 56409428