Crucial Vacuum Brand 9 pack of Allergen Filtration Eureka Style RR Vacuum Bags * Fits Eureka Ultra and Boss Smart Vac (SmartVac) 4800 Series Upright Models 4870AT, 4870ATV, 4870BT, 4870DT, 4870GZ, 872AT, 4872BT, and 4874AT model vacuum Cleaners. * These are comparable with Eureka"s vacuum bag part number 61115, 61115A, 61115B. * These bags are absolutely essential for all allergy sufferers. * Designed and Engineered in the USA by Crucial Vacuum.