Micro Essential Lab HJ613 Plastic Hydrion Insta-Check pH Test Paper Dispenser, 0 - 13 pH, Single Roll Jumbo auspowers_batchtwo 60Nm Stall Torque (6V): 0

60Nm Stall Torque (6V): 0

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Micro Essential Lab HJ613 Plastic Hydrion Insta-Check pH Test Paper Dispenser, 0 - 13 pH, Single Roll Jumbo auspowers_batchtwo 60Nm Stall Torque (6V): 0Micro Essential Lab HJ613 Plastic Hydrion Insta Check pH Test Paper Dispenser, 0 13 pH, Single Roll Jumbo One roll of pHydrion Insta Check testing papers is supplied in a plastic, protective dispenser with a color chart for simple, single color matching. This 1 2 inch paper tests one of the widest pH ranges available in a single paper with each full pH unit showing a distinct color change and provides accurate, reproducible readings from an immediate