Spelean - Platypus GravityWorks Universal Bottle Adapter Water Filter Accessory
Increasing the functionality of your Platypus GravityWorks filter (sold separately), the Platypus Universal Bottle Adapter allows the system to be connected directly to a wide array of water containers, including MSR Dromedary bags, Platypus bottles, narrow or wide-mouthed Nalgene bottles, most metal water bottles and even standard soda bottles (all bags and bottles sold separately)! The Universal Bottle Adapter also includes a closure cap that keeps the adapter free of debris while in your pack.
Features:
> Connects most drink bottles to all GravityWorks Systems
> Modular components allow you to take just the parts you need