EnviroCare Replacement Micro Filtration Vacuum Bags for Kirby Generation Series 3, 4, 5, 6. 18 Pack 18 EnviroCare Replacement Micro Filtration bags for Kirby Generation Series Uprights Will not fit vacuums that use the "F" style bag Designed to fit: Kirby Generation Series G3, G4, G5, G6, G7, G8, G9, Sentria (Models Pre Jan. 2009), G9D, Diamond Edition DE, G8D, Ultimate G, ULTG, G7D, Gsix, G6D, G5D, G4D, G3D, Legend II (Disposable bag models), Legend I, Heritage II. Micro filtration Allergy bags. 99.7% filtration A must for Allergy suffers Manufactured by EnviroCare Technologies, the leader in premium aftermarket Vacuum bags and Filters