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Hydrion Dual Range Test Paper in Jumbo Dispenser
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Two extra-long, 49' rolls of test papers that cover the full 0 to 14 pH range. The first roll covers 1 to 11 pH in 1 pH intervals; the second roll covers 12 to 14 pH in 0.5 pH intervals. Furnished in a plastic dispenser with two color charts. Double roll.
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