6 iRobot Roomba 500 Series Vacuum Cleaner Filters; Compares to iRobot Roomba R3 500 Series Part #81502; Designed & Engineered by Crucial Vacuum
6 Replacement filters For iRobot Roomba 500 Series and Roomba Professional Series Robots. Replaces iRobot Roomba filter Part# 81502. For optimal Roomba performance, replace filters every 2 - 3 months. Absolutely Essential for all Allergy Sufferers. Designed and Developed in the USA by Crucial Vacuum.