The Camelbak Reservoir Dryer makes it easier to get your Camelbak reservoir completely dry. If you don’t get all of the liquid out of your reservoir before putting it away they can quickly get mouldy & nasty. The reservoir dry lets you hang the reservoir more easily & keeps it open so it dries better, Features Two piece set New click-in dryer hangs Crux reservoirs, ensuring water drains Pure Flow Tube snaps to hanging hook to allow vertical hanging & drainage