My google-fu isn't working for me. I've seen several intriguing (to me) water filters but no real tests or reviews. Here are a few:

Moko
Diercon (look identical to the Moko but rated better)
Survivor
Boston
I'm sure there are a few more.

From what I read online it appears they are using technology similar to the Sawyer but with an enclosed pump. I rigged a pump for my Sawyer but these appear more compact and less cumbersome.

I prefer a pump filter so this is what I'm looking at.

Does anyone know where a test or independent review of these might be found?

Thank you.