McKesson OPA Concentration Indicator 73-OPA28B

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Features & Benefits To verify the efficacy of McKesson OPA/28 Solution, user should test for the minimum effective concentration (MEC) prior to each use 3 second dip time, read at 90 seconds Large, easy-to-read indicator pad Definitive color identification comparison chart on each bottle 18-month shelf life (unopened bottle), 6-month shelf life from date of opening Show more