Sawyer mini gravity bottle adapter

thingiverse

Attach the adapter to your water bottle or bag, then thread the Sawyer Mini filter outlet through the V-shaped opening on the side and hang the water bottle from the filter. The more water you're filtering at once, the faster it will flow. For example, it took about 30 minutes to fill a 20 oz. bottle with 20 oz. of dirty water, whereas 72 oz. of dirty water filled the same 20 oz. bottle in just 5 minutes.