Shark NV500 Series Belt for the Rotator Lift-Away Vacuum Model NV500, NV501, NV502, NV503, NV505, NV500W Package of (1) replacement belt for Shark Rotator Lift-Away NV500 Series Models. The belts from "Belts, Vacs, Parts & More" do not need to be replaced every 6-12 months. Buy only from "Belts, Vacs, Parts & More" to recieve instructions for replacing your belt. 30-day warranty only if you buy from "Belts, Vacs, Parts & More" New