Quick Link Exit Port and QL HydroLock Bite Valve Adapter: tube clicks off for faster refilling with auto shut-of
New Fillport: industry's largest opening with air-light ? turn open/close for quick secure seal that can't be over-tightened; lighter weight lower profile design
QL HydroLock offers easy one-handed on/off water flow on drink tube
Insulated drink tube cover protects tube from harmful UV rays and abrasion