Rapicide OPA/28 features a 10-minute high-level disinfection time that’s faster than all other OPA disinfectants in the market today. Rapicide OPA/28 also has up to twice the reuse life of existing OPA’s – lasts 28 days. OPA/28 also effectively inactivates: TB, HIV2, MRSA, VRE, Hepatitis Viruses. Rapicide OPA/28 Test Strips can verify the proper concentration quickly and are intuitive and fast with a pass/fail reference color chart on bottle and 3-second dip time and 90-second test strip read time.