Industrial Test Systems eXact 486673 Micro Total Hardness Strips, 0-300 ppm Detection Range (Bottle of 50)
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The part that you need has the part number 486656 and it does 90 to 600 parts per minute. You can also use the part number 486630, which does 1 to 80ppm, if you need Low range. As of now, I don't have this item in stock, but I can order If I can help in any way, please let me know.
Selected User Reviews For Industrial Test Systems eXact 486673 Micro Total Hardness Strips, 0-300 ppm Detection Range (Bottle of 50)
S. , I had to install a whole-house filter system that would recirculate air and clean water in the home In accordance with my doctor's instructions, I have installed an RO filter in my house. I then purchased an eXact Micro 20 test meter, as recommended by the RO installer, so that I can monitor my water quality at all times. With these strips and the eXact Micro 20 meter, which these strips MUST be used with, they work perfectly. Additionally, the other reviewer does not even appear to have read the product description before purchasing these strips, and as a result, he has no right to give them a 1* rating when it was his own mistake.
Testing your water with these cannot be done just by buying them. Micrometers of the "eXact" brand are compatible with these pens. It may be possible to get great results with them with the right equipment, but I did not realize this before buying.