Ionix Ph Testing Strips, Full pH 1-14 Test Indicator ...
pH 1-14 Color chart in each pack. Litmus Paper test strips change color within 2-3 seconds, to be matched with the pH scale color chart Improved Sensitive, extremely accurate pH balance test strips measure pH range from 4.5 to 10.0, providing better data than cheap strips with limited range, best quality pH test strips
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