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1 Hydrion Short Range PH Paper + Free USA Shipping!

Price: $17.95
Hydrion Short Range PH Paper ( Nitrazine Paper ) 5 yard roll in dispenser with chart.Used for determining PH( acid/base ) in the 4.5 to 7.5 range.One roll goes a long way as only a 1/4" piece is needed per test. This is the paper Dr.Jarvis refers to in his writings.

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