The Antidote Insulated Tube with Flow Meter lets you set and monitor personal hydration goalswith a programmable interface. The insulated tube keeps the heat and cold out, while the Flow Meter gauges how much water you drink and how much is left in your reservoir. Includes Pure Flow delivery tube, insulated cover, Ergo HydroLock, Big Bite Valve, and Quick Link connector. Clicks onto any CamelBak reservoir with Quick Link system. Works with OMEGA reservoir with the use of Quick Link Conversion Kit.