Can I filter directly into the Big Zip LP/Big Zip Evo from a Platypus GravityWorks Filtration System?

Yes, if you would like to filter water directly into a Platy Big Zip EVO Hydration Reservoir from a Platypus GravityWorks Filtration System you  can do it using a GravityWorks™ Bottle Adapter. This is a universal adapter that is made up of an outer ring, a centerpiece, and a threaded cover that protects the parts from contamination. Here's how you can use each piece: 

• The outer ring of the adapter threads onto most wide mouth bottles on the market. Such as wide mouth Nalgene bottles
• The inner part of the ring is designed to fit medium sized bottles
• The center of the adapter is sized to fit narrow mouth bottles by pressing into place to create a tight seal. 
• The port in the middle presses onto a shutoff valve and allows you to filter directly into your hydration system.