Brian, The H2O Amigo is great and is also a weight and time saver.  Because it is so convenient and fast, the couple we usually hike with leaves their MSR filter at home.  I have also had other hikers inquire about your filter and have referred them to your website. Thanks again for your help and great products. Michael Chubon Hey, I finally got to use the H2O Amigo, and it worked like a charm!! Easy to use, fast to gather and filter water. You always have a faucet,shower or more water to filter for morning, ahh very nice. Thanks!!! Corey Smith Greetings, I purchased the Amigo Gravity Filter last year and used for 21 days  on the John Muir Trail.  I loved it!  Thanks a bunch. Randall Smith