Professional Series Vac Bags. 99% Micro Filtration. Provides up to 40% Increased Airflow. Janitized Vacuum Bags for Royal Dirt Devil Metal Upright Vacs. Type B Models which Include 673, 673Z, 1018, 1018Z, 1025, 1028, 1028Z, 1030, 1030Z, 1058, 1058Z, 7730, 7730Z, 08900, Everlast RY8100, RY8200, RY8300, RY8400 and RY8500. Royal Dirt Devil Part #2-066247-001