27 VACUUM BAGS DESIGNED TO FIT ALL ROYAL DIRT DEVIL AND AIR PRO 2000 VACUUMS CALLING FOR THE Q BAG. THESE BAGS ARE THE BEST QUALITY REPLACEMENT MICROFILTRATION BAGS AVAILABLE. DESIGNED TO FIT ALL DIRT DEVIL VACUUMS USING THE Q BAG. THIS LISTING IS FOR 4 PACKS, EACH WITH 7 BAGS. MICRO BAGS PROVIDE 99.7% FILTRATION AND ARE A MUST FOR ANY ALLERGY SUFFERER