For use on Eureka Victory Models 4300, 4400, 4600 and Self-Propelled Models 5180 series uprights. For optimum performance, change your bags every 1-2 months. Store in a dry, clean place. For maximum filtration in eliminating allergens and pet dander, try our Genuine Eureka Filteraire AA Bags. Style AA Filteraire Bags item number 58623.