Bests & Worsts Reviews from Amazon

THESE DO NOT WORK! Bought this after purchasing another identical looking shower filter, that was a generic brand, and tested both, (supposed filtered water), with a TDS tester, and it showed no change in the water. I became suspicious of the product, because too many others on Amazon look identical, all different named companies, same product though. It states that the TDS tester does not measure water change/quality via the TDS on these products? I have filtered Drinking water, Zero Water, and when tested it measures 0-27 depending on how old the filter is. My issue with this product and the generic one that looks identical to this and several others on Amazon, is if these truly filters the water as they claim, then where is the proof??? I believe that they do not want you using a TDS water tester, because this does not filter at all. Did not see a difference in my skin, hair, smell, so I returned it along with the Generic brand. I want to have proof the product that I purchase works, and not just by a claim? If you look on Amazon, you can see various names of companies, selling this identical filter, same look, with the same bulb, same claim, and filter, this particular filter can not be measured, and does not work, so if it is too good to be true then it is not true. RIP OFF....