Product review (5 stars): Does The Same Job For Less
I was skeptical when I started reading some of the reviews, until I saw that the reviews from 3-4 years ago were the most critical, while the more recent were more positive.
A few reviewers claimed to be engineers, regardless if they were, they brought up some valid points about certifications. It stands to reason that due to cost, a company making knockoff filters (both using Activated Carbon) would be less likely to pay for additional testing that would lead to additional certifications.
After I installed the WS filter with no problems, I found the water quality to be as good as the MWF. I also noted the outflow pressure was as good as well.
Overall, I found this filter does the same thing as the MWF, but at a fraction of the cost.