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Hydrion 3-8 (overall) pH Paper In Double Roll Dispenser 1Set. Hydrion Short Range dual rolls of 3.0-5.5 and 6.0-8.0 pH paper. Short range papers offer a sharp color change for each half pH unit. Lucite dispenser contains two 15 Foot Rolls of pH Testing P
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Hydrion 3-8 (overall) pH Paper In Double Roll Dispenser 1Set. Hydrion Short Range dual rolls of 3.0-5.5 and 6.0-8.0 pH paper. Short range papers offer a sharp color change for each half pH unit. Lucite dispenser contains two 15 Foot Rolls of pH Testing P
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