Keep your toilet or urinal up and running with the Flushline replacement diaphragm disc repair kit for Sloan Regal A-156-AA. Due to the repeated movement of the diaphragm required for every flush cycle, the diaphragm is one of the most commonly replaced components in a flushometers. This non-OEM kit replaces Sloan's OEM part #5301189, and includes: molded disc, diaphram, washer seal, and handle gasket. Instructions are included with every package for easy installation. Proudly Made in the USA!