Flush valves are designed to let water out of the toilet tank into the toilet bowl to eliminate the liquid and or solid waste from the bowl. There are various styles of flush valves amount them are flapper style, tilt valve style, ball and lift rod style and piston style. On some models of toilets there is a combination of fill valve and flush valve. Replacements of the flush valves can be O.E.M. And aftermarket. Some of the manufactureвЂ™s trip levers that North Shore Faucets, Inc. carries are: American Standard, Briggs, Case, Coast, Crane, Delta, Eljer, Gerber, Icera, Indiana Brass, Icera, Kallista, Kohler, Lavalle Industries, Mansfield, Porcher, Saint Thomas Creations, Toto, Generic Universal, Universal Rundle, Wolverene Brass.