Guide H2O filter
This filter works great. Was able to pump out 5 liters of water in a matter of minutes. Hands down, blew the MSR filter we "tried" to use last year away. Water tasted great, and the Nalgene bottle connection output piece is great. Note: Nalgene adapter does not work with the new Eddie Bauwer Nalgene bottle (the top is to big to screw into the adapter).