Replace The 3-Inch Dual Flush Valve On Fluidmaster 2-Piece Toilets,, And Others. The Fluidmaster Dual Flush Valve is designed to be an exact replacement dual flush valve for your 3? Flush Valve Toilet. For use with Glacier Bay, AquaSource, Project Source and many more. Dual flush offers maximum performance and optimizes water use. Customize to your specific needs, with adjustable settings for both solids and liquids to enhance performance and save water. Built to last from high quality materials this model features a 5 year warranty. Fluidmaster?s 3? Dual Flush Valve Replacement helps you stop water waste and can eliminate common flush problems like leaks and running toilets. Restore original factory performance to your Glacier Bay or other Dual Flush Toilets Easy to install Fit?s 3? Dual Flush Valve, 2 -Piece toilets, including Glacier Bay, AquaSource, Project Source and more Superior flushing of solids and liquids Adjust the full or half flush to match factory settings, save water, and restore flush performance