3 Upgraded version, high effficiency Hepa bag will filter 99% of dust particles and last up to 50% longer than paper bags. 10 in pack suitable for numatic AV250, Basil, Bertie, Charles, David, Edward, George, Henry, Harry, James, Lewis, Nuvac, HHR200A, HVC200, AV380,CVC370, ECO, EVR370, GVE370, HET160-11, HET200-11, HHR200A, HVC200, HVR160, HVR200, HVR200A, HVR200P, HVR204, HVR204P, HVR240, HVR370P, HZ360, HZQ200, HZQ250, JVC200, JVC225, JVC235, JVP180A, JVR225, NB200, NNV200, NNV204, NQS250B, NRV200, NRV204, NV200, NV204, NV250, NV300, NV475, NVE3, NVH200, NVQ200, NVQ204, NVQ250, NVQ254, NVQ402, NVR200, NVR225, NVR260, NVR375, RSV130, RSV134, RSV200, Rucksack, SE250, VNP180, VNR200, WV370, Qualtex AS100R, Quickclean AS200B/G/S, Equivelent to bag type NVM1B, NVM1C.