This is a Camelbak Part known as the Mil Spec Crux Replacement Tube, model 2039201000.
The Mil Spec Crux(TM) Replacement Tube with Quick Link(TM) System keeps every sip insulated from the elements. Clicks easily into CamelBak(R) Mil Spec Crux(TM) Reservoir with Quick Link System.
Features:
Mil Spec Cruxâ„¢ Replacement Tube protects against extreme weather and keeps the heat and cold out
Includes Pure Flowâ„¢ delivery tube, insulated cover, QL HydroLockâ„¢, Big Biteâ„¢ Valve and Cover, Quick Linkâ„¢ connector
Clicks onto any CamelBak reservoir with Quick Linkâ„¢ system
