Description Case 5129 Flush Valve. This fits many different Case Lowboy toilets made from the mid 1930’s up to the mid 1950’s. It’ll attach to Case model “A”, 1000, 1100, 3000, 3200, 4200, 4300, 6000, 6001, 6002, 6011, 6012, and 6014. If your Case toilet is any of the above model numbers, this Flush valve will work. Not for use in either close coupled or low tank applications, ONLY one piece toilets
