User Review: MSR SweetWater Microfilter
I purchased my Sweet Water microfilter roughly 15 years ago. I have never had a problem with it. It pumps water very efficiently, it is easy to clean, and I have never gotten sick due to the water I have pumped through it.
My only gripe is that they discontinued the viral guard for this product many years ago. Now they have a liquid that you add to the water.
If you are thinking about purchasing this filter, go for it. You won't regret it.