When you buy a Fluidmaster valve for your toilet repairs you’re getting the finest valve in the world, made by the world’s largest manufacturer of toilet parts. Founded in 1957, Fluidmaster is based on innovation, quality and functionality and with its popularity with plumbers and do-it-yourselfers; Fluidmaster has manufactured parts for nearly all toilet tank problems. Top Manufacture’s rely on Fluidmaster to add value to their products. It’s no wonder why Fluidmaster sells more tank replacement parts than any other in the world!