Standards Requirements for POE vs. POU Systems
Whats the difference between a whole-house filter and one that goes on the end of the kitchen faucet? Besides the obvious (that one is filtering all of the water for the entire house and the other filters only water at the kitchen sink) there are big differences in how these two filters are tested under the NSF/ANSI Drinking Water Treatment Units (DWTU) Standards...
by Rick Andrew
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