Janitized high efficiency premium replacement commercial vacuum bags can be used for Sanitaire BackPack fits: SC412, OEM #C352-2500; Tornado Pac-Vac Models: PV6, OEM #C352-2500; Koblenz BP1400, OEM #49-5803-9; Tennant V-BP-6 BackPack, OEM #9007784; Powr-Flite BackPack Model: PF300BP, OEM #C352-2500. In the event an OEM manufacturer does not honor its warranty when using Janitized brand replacement bags and/or filters, APC provides our blue ribbon warranty that meets or exceeds the OEM warranty.