NSS 9691911 Pacer vacuum bags are a professional, commercial-grade vacuum filter bag that fits Pacer 12 vacuum cleaners. These Pacer 12UE vacuum bags trap dangerous airborne particulates that can cause severe breathing issues, particularly among the young, elderly and sick. Meet your moral duty to protect those who can't protect themselves. Unlike wimpy bags that too easily tear dumping crud all over . . . these NSS Pacer vacuum bags are rugged and durable. 10 vacuum bags per pack.