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Determines Quaternary concentrations up to 10,000 ppm in just seconds Comes with 50 easy to use pre-cut strips, enabling you to keep your fingers far away from the solution Has easy to use water resistant color chart and instructions printed on bottle Comes in a portable moisture resistant desiccated vial – protecting it from the elements and maximizing shelf life Perfect for testing high level Quaternary Ammonia, This test is NOT intended for restaurant use, unlike our ‘MQ400R’ roll and our ‘Fast Formula Quat’ strips