GravityWorks™ Water Filter System

Set-up took maybe two minutes and I filled all our bottles before the others even got their pumps out. The 6-liter bag handled a full day of water for four of us without any back strain, which is exactly what I wanted for basecamp duty.

I’ve used it twice on weekend trips and the gravity flow is effortless—no pumping, just hang it and walk away. The 6-liter size easily handled water for three of us all day, and the bags pack down small enough to fit in my cook pot.

Filled both the 4-liter bags in under two minutes with zero pumping—just gravity doing all the work. The flow rate is impressive enough that I actually stopped timing it and just let it run while I set up camp.