McKesson OPA/28 Test Strips for Concentration Indicator, Single Use, 50 Count, 1 Pack

OPA test strips check the efficacy and strength of McKesson OPA/28 solution after mixing, ensuring that it's strong enough to properly and thoroughly disinfect and sanitizeRequires only a 3 second dip time in the solution and 90 seconds to get a reading, making the task quick, easy and convenientIndicator pad on the end of each disinfectant test strip is large and highly visible for fast, accurate readingBottle displays a definitive color identification comparison chart to assist in interpreting test resultsInside the bottle are 50 single-use strips with a shelf life of 18 months to keep them ready for use.