Sloan's OPTIMA SYSTEMS touch-free plumbing fixtures offer ADA compliance and water conservation with sleek, contemporary and functional designer styling. OPTIMA SYSTEMS is comprised of electronic Flushometers, faucets, sinks and hand dryers. Sloan's electronically controlled products meet the Americans with Disabilities Act requirements (ADA A.G.4.19.5) in both new and retrofit applications. Sloan Valve Company.