Camelbak Quick Stow Flask Tube Adapter It's time for that much needed replacement and you don't want to buy a completely new bottle if it's not necessary. The Camelbak Quick Stow Flask Tube Adapter allows you to go hands-free. This extension piece allows you to drink from your Quick Stow and Quick Stow Chill flasks without removing them from the shoulder pouches of your backpack or vest. The Hydroguard(TM) technology inhibits the growth of bacteria in the tube. FEATURESHydroguard(TM) technology inhibits the growth of bacteria in the tube Bite valve self-seals to eliminate annoying drips | Camelbak | Quick Stow Flask Tube Adapter Blue