Product Description: CamelBak HydroLink Filter AdpaterWithout ever even taking the pack off, the CamelBak HydroLink Filter Adapter turns a babbling brook into a source for filling your reservoir. You do need a filter system as well, but this adapter is going to let you fluid up in the outdoors without looking for the elusive source of the spring. Easy to use.Connects directly to your hydration systemSimultaneously filters water and fills your CamelBak reservoir without you removing the pack
