Product review (1 stars): Water Quality using https://www.amazon.com/gp/product/B002C0A7ZY/ref=oh_aui_detailpage_o00_s00?ie=UTF8&psc=1
The reason for One star is just the water quality coming out after installation.
I installed this filter to my refrigerator and tested the water quality(after running water through the filter and throwing away lots of it before choosing my sample to test)  water  using below and the ppm, came out to be 567 and the same number when I use my RO is 50 or 51 .
https://www.amazon.com/gp/product/B002C0A7ZY/ref=oh_aui_detailpage_o00_s00?ie=UTF8&psc=1

I am not sure if compromising on the quality of water is a good idea using this filter.
I am going to test again today  and tomorrow and will post my findings