?Specification?Cloth bag for Hoover Commercial part number: 2KE2105000. Backpack vacuum bag measures: Diameter: 9"; Length: 14" | | ?Compatibility?HEPA cloth bag liner compatible with Hoover Commercial shoulder vac pro bags C2401, C2401010, and for Royal RY4000, RY4001 backpack vacuum. Clean without disrupting the environment around you | | ?High Quality?2KE2105000 HEPA cloth vacuum cleaner replacement bags is made of HEPA. HEPA captures 99.97% of dirt, dust and pollen down to 0.3 microns. Backpack cleaner attachments are designed with advanced features to meet the requirements of today's demanding applications to ensure long-term availability. | | ?Easy to Install?Take out the old bag and put the new bag in it and finish the replacing within minutes. Cloth bag liner come with rubber gasket ring and double hepa filtration to ensue a perfect seal and durable use. Remember to wear work gloves to protect your hands and follow the repair video on YouTube for an easy installation..