Green Klean Brand superior quality commercial vacuum bags are specifically designed for the Janitorial Professional vacuum cleaners and are backed by the Green Diamond Warranty. Green Klean Superior Quality Replacement Vacuum Bags, Fits Nilfisk Carpetwin Upright 14/18 and Advac models, also fits Lindhaus Healthcare Pro, RX HEPA, CH Pro, Dynamic 300/380/450 Minuteman Phenom 15 18 Dual Motor Uprights (GK-CarpTwn, 56704181, 703768, 7128, 032220019, PH4, R4). For use with Nilfisk Carpetwin Upright 14/18 and Advac models, also fits Lindhaus Healthcare Pro, RX HEPA, CH Pro, Dynamic 300/380/450 Minuteman Phenom 15 18 Dual Motor Uprights. Made from the highest-quality materials to achieve filtration efficiencies up to 99.9%. Designed specifically for commercial use; equal to/exceeds OEM quality. Green Diamond Warranty. 10 bags per pack.