CamelBak Hydrolink Conversion Package – Retrofit any CamelBak Hydration Machine with HydroLink elements. Comprises HydroLink, HydroLock and the HydroLink Chew Valve Adapter with Massive Chew Valve. Massive Chew Valve provides unrivaled water glide effortlessly. Close-off valve means that you can keep watch over liquid glide. Activate while you wish to have it; off while you do not. CamelBak Were given Your Bak Ensure: If we constructed it, we will Bak it with our lifetime Ensure.