AD 56630563 Brush Roller Belt for Eureka Sanitaire, Clarke and Nilfisk-Advance ReliaVac and AdVac series upright vacuums. Rubber circular brush roller belt. Fits many Sanitaire and Eureka models as well as Nilfisk-Advance ReliaVac 12, AdVac 11, AdVac 12, AdVac 12HP, AdVac 12DC, AdVac 16HP, SelectVac 11, SelectVac 12, SelectVac 12HP, SelectVac 12DC, and SelectVac 16HP upright vacuums. Replaces Nilfisk Advance 56630563, Eureka 30563A. Our Part Number AD 56630563