#4 American Standard Lowboy Flush Valve
These flush valves are found in only American Standard lowboy (one piece) toilets made from the late 1930’s up to the early 1970’s. Will not fit in other applications, only lowboy. This is an aftermarket part not made by Standard, but is equivalent to Standard’s # 47086-0700. This valve is found in Standard Lowboy toilets that have a separate ceramic overflow chamber.