The all-new, next-gen bite valve is compact while still delivering great flow, with a smooth, on-off valve that is easy to operate one-handed. Installs on any 0.25 in. / 6.35 mm hose. $18.95 Tagged: Vendor: OSPREY Type: HYDRATION Osprey Hydraform Reservoir Cleaning Kit Osprey Hydraulics LT Reservoir 2.5L