Euro-Pro Shark Infinity Vacuum Cleaner Belts. Fits Infinity upright vacuum cleaner models NV30 and NV31. Includes one tension belt and one drive belt. Genuine Shark parts . Description Shark Infinity upright vacuum cleaner HEPA filter. Fits models NV30, NV30CN and NV31N. Genuine Shark part. Hoover vacuum cleaner bags fits Hoover Top-fill Uprights, Convertible, Elite, Legacy, Decades, Concept One, Encore, PowerMax, Runabout, Spectrum, Spirit, Sprint, Tempo and Innovation models. Generic 3 pack of bags.