GravityWorks(TM) 2.0L Water Filter - Bottle Kit 2.0 liter Bottle Kit
GravityWorks(TM) 2.0L Water Filter - Bottle Kit 2.0 liter Bottle Kit, The minimalist, ultralight and ultracompact GravityWorks 2.0L Bottle Kit uses a simple and easy design to connect the pump-free water filter directly to a water bottle or hydration reservoir, conveniently filtering up to 1.5 liters of water a minute for 1-2 people.