The updated Platypus Drink Tube Kit offers two great options: 1) It replaces an old or damaged Hoser (TM) drink tube, and 2) It converts any Platypus bottle product with a threaded-opening into a handy hydration reservoir. The kit comes with the threaded closure, a 1/4 " drink tube, a lapel clip, and the new fast-flowing HyFLO (TM) bite valve. Platypus Drink Tube Kit | Christy Sports