Platypus GravityWorks Universal Bottle Adaptor
Platypus GravityWorks Universal Bottle Adaptor, The Universal Bottle Adapter is an ultralight space-saving accessory that enables any GravityWorks water filter to filter directly into a wide range of water bottles and hydration reservoirs. Thanks to its modular direct-to-bottle capability the adapter makes it easy to take only the parts you need and save both space and weight by leaving a dedicated Clean Reservoir at home.