Product review (1 stars): Worthless junk knockoff - Don't waste your money!
I have tested the genuine Samsung filter and also Chinese filters like this one, and there is a distinct purification of dissolved solids from the Samsung filter whereas the generic Chinese ones do little to nothing.  So if you want to just waste money on something that does almost nothing then go for this filter, otherwise you would be better off spending slightly more and getting something that actually functions, albeit the Samsung isn't great either, at least it does something.  If you wanted to save money you would be better off just keeping the old Samsung filter in the fridge for a longer period of time versus swapping out with an inferior filter with greater frequency.  I tested several of these generic filters when new and after a period of use and the difference in TDS (total dissolved solids) was so small compared to tap water that I felt the filter generally did nothing but slightly alter the taste. These also had significant defects in the way the plastic housing was manufactured with small bits of plastic on the inner connecting piece that could fall off and end up in your water.