Product review (1 stars): I'd like to return this product as I expected the TDS ...
After I purchased three of these filter for 5 months ago and finally I try it out two days ago and I'm surprised that TDS measurement is very high as 450.

I even tried to flush out more than 5 gallons of water after installed the new filtered (instructed in the procedures) and the reading is remain the same. I'd like to return this product as I expected the TDS reading should be below 50 (ideally for drinking water). I didn't even attempt to try the 2nd & 3rd one as it would be the same. I rather leave it as it is so I can return them.

I'm so disappointed this product and would like to return these items A.S.A.P.