Rapicide OPA/28 Opa Concentration Indicator The Rapicide OPA/28 Opa Concentration Indicator is a crucial tool for managing the effectiveness and safety of your high-level disinfectants. This product comprises test strips designed to monitor OPA (ortho-phthalaldehyde) concentration, ensuring that your disinfectants remain effective over time. Product Features - Specifically designed to monitor the concentration of OPA in high-level disinfectants. - Available in various configurations to meet different needs. - Easy to use: Simply dip the test strip into a solution for quick and accurate reading. Variants - Bottle of 1: Compact and convenient for regular challenges in a variety of settings. - Case of 2: Ideal for extended use or larger operations requiring consistent OPA monitoring.