Amazon.com: 15 in 1 Drinking Water Test Kit Strips -
They work great, very easy to use, accurate, and gave us peace-of-mind that our water quality was good. We had tested the quality for our fish tank a few months ago for basic PH and that test showed high alkalinity. These strips confirmed that. Best of all there are a LOT of strips, so we can do tests monthly if we wish for a long time.
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