The Nacecare Hepa-Flo Disposable Filter Vacuum Bag works with a range of vacuums, designed specifically for commercial use. Better filtration helps provide cleaner air, less dusting and more. A great addition to any establishment. Works with: HZ 370, WV 370, WV 380, George GVE370, Charles CVC370, NVQ370, NVQ380, MFQ370, NVH380, NVH380C, NVQ372H, PSP380, PVR380, PVR390. - Sold per pack; 10 per pack