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Litmus paper strips are an easy-to-use alternative to check nutrient solution when you do not have a pH tester on hand.
When dipped into a nutrient sample it will change color to indicate the pH level.
Compare the color on the litmus paper strip to the color on the chart provided to read the results.
The scale of pH that can be measured with these economical litmus paper strips is 1 to 14. They come in a tube of 100 strips.
Litmus / pH Paper Strips: |
$1.99 |
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