6047117.002 - Ultima Manual Clinic Sink Flush Valve - 6.5 GPFAmerican Standard 6047117. 002 Ultima Manual Clinic Sink Flush Valve The Manual Flush Valve deliver a 6. 5 gallons per minute to perform flawlessly on clinic sinks with flushing rims. The self cleaning brass piston cleans he refill of the clinic sink with each flush. Designed to pair with American Standard clinic sinks, the flush valve is a durable option for hospital and surgical centers. Features For clinic sinks with 1 1 2" (38 mm) exposed top spud