We(3 buddies and myself) took this filter into the Enchantments, in Washington state. It easily kept clean water coming all weekend long. The flow rate is respectable, and no…
- james, 08/24/12

Purchased the gravity flow about two years ago... Works flawlessly. Ive filtered extremely dirty water and have never had problems with flow rate. When flow decreases a quick…
- Travis, 01/20/13
Tacoma

Purchased the gravity works about two years ago.... Absolutely no complaints. Maintains great flow even filtering extremely dirty water. When flow does slow a bit, a quick bac…
- Travis, 01/20/13
Tacoma

It's really very useful for my platypus hydration bladder to prevent the spout from dust.…
- XI, 12/30/10

Can't say much other than this works perfect! Pop the bite valve off and slide this on the hose. Remember "Always keep your tip clean!"…
- Anthony, 12/21/11
Point Pleasant, WV