Micro Essential Lab 50 Polystyrene Hydrion Wide Range pH Test Paper Dispenser, 1 - 12 pH, Single Roll Single Roll, 1 - 12 pH auspowers_batchtwo SAFE AND FOOD-GRADE - The

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Micro Essential Lab 50 Polystyrene Hydrion Wide Range pH Test Paper Dispenser, 1 - 12 pH, Single Roll Single Roll, 1 - 12 pH auspowers_batchtwo SAFE AND FOOD-GRADE - TheMicro Essential Lab 50 Polystyrene Hydrion Wide Range pH Test Paper Dispenser, 1 12 pH, Single Roll This Hydrion pH paper is in a single roll dispenser, and has a wide range from 1 12. It is in a plastic case which accommodates a single 15ft roll of paper, as selected. The Hydrion wide range papers show a distinct change for each full pH unit. The pH color chart is printed on the side of the case. Range: 1 12. 1 Roll Dispenser; 10 Dispensers Carton.