Here's what other sites are saying:
The Platypus GravityWorks Bottle Adapter lets you connect your water filtration system to any bottle you choose. Whether it is a soft bladder or a hard 1 litter cylinder, you can fill it easily without creating a mess. When you're done refilling, the nesting nozzles and caps turn into a single compact unit for easy storage and packing.
- Mountain Gear
Platypus Camp & Hike Gravityworks Universal Bottle Adapter 6956.
Features of the Platypus GravityWorks Universal Bottle Adapter Allows any GravityWorks water filtration system to filter directly into a wide range of hard bottles and hydration systems Eliminates the weight of a dedicated Clean Reservoir Multi-component design lets you take just the parts you need for your vessel of choice to faux further lighten your load
The Platypus GravityWorks(TM) Universal bottle adapter allows a GravityWorks water filtration system (sold separately) to filter directly into a wide range of hard bottles and hydration reservoirs.
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