The Drink Tube Kit replaces a damaged or old drink tube on the Platypus Hoser Reservoir Kit converts any Platypus bottle product with a threaded-opening into a handy hydration reservoir Self-sealing HyFLO bite valve delivers a 30% increase in flow rate over the standard valve Included in the kit is the threaded closure, a 1/4–inch drink tube, a lapel clip, and the fast-flowing HyFLO Bite Valve Made in the USA