Shark HV300 Series Belt for the Rocket Ultra-Lightweight Upright Vacuum Model HV301, HV302, HV305, HV308 (1) Package of (1) replacement belt for Shark Rocket Ultra-Lightweight Upright Vacuum Model HV301, HV302, HV305, HV308 These belts do not need to be replaced every 6-12 months. I can provide instructions for replacing your belt. 30-day Warranty. Guaranteed Fit. New