Product review (1 stars): BARELY Filters - 241 PPM vs 257 PPM.
I wasn't surprised to see that OEM Samsung filters were significantly more expensive than aftermarket.  I was, however, surprised at the performance - or lack thereof - of these filters.  We have a Zero Water pitcher and use that as the standard.  We use an HM Digital ZT-2 meter to test for particulates in the water.  [...]I don't consider this to be super-scientific, but it allows you to compare one filter/faucet to another.  The 7 month old Samsung filter that I removed gave us a reading of 185 PPM.  I put the EcoAqua filter in, ran over 300 ounces through it to flush it, and tested - 241 PPM.  Then I tested pure tap water, right from the faucet - 257 PPM.  By contrast bottled "spring water" gives a reading <100.  It almost seems like there's nothing to these filters, so I'll be requesting a refund.  For that level of filtration, or lack of filtration, I'm actually better off leaving a 7 month old OEM filter in place than I am replacing it with a brand new EcoAqua filter.  Very disappointing.