Features. The new flow meter is easy to read and easy to set for maximum efficiency. ClearO3 has the highest ozone concentration with the least amount of air injected into the system. Changing UV bulbs is easy and can be completed in minutes. The cylindrical ozone excitation chamber is designed to maximize ozone production. The sealed aluminum construction virtually eliminates ozone leaks. Adjustable mounting tabs allow for easy installation near pool equipment. Specifications: Clear color