This reservoir is new and improved. The design highlights essential features; it won't leak, and it's much easier to fill and clean.
-The reservoir can be removed and filled while leaving the hose threaded through the pack
-Reservoir can be turned inside-out for easy cleaning
-The opening automatically shuts off when the hose is removed
-Smooth inside, for easier cleaning
-Slightly smoother outside, to slip in and out of packs
-Top closure is fold-over and slide-closed resulting in never leaking and opens fully for cleaning
-Utilizes a hose which incorporates an on/off bitevalve