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Hydrion Insta-Check 0-13 pH Paper Dispenser Single jumbo (1/2 tape) dispenser roll of 50 Insta Check 0-13 and one color chart. Wide range general use paper. Find color match in seconds. 14 different colors across pH range.
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Hydrion Insta-Check 0-13 pH Paper Dispenser Single jumbo (1/2 tape) dispenser roll of 50 Insta Check 0-13 and one color chart. Wide range general use paper. Find color match in seconds. 14 different colors across pH range.
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