Will this work on an Eljen toilet?

Some Eljer toilet use a ceramic overflow and the flush valve hole is too small for a standard flush valve. Other Eljer toilets or newer models are using larger flush valve like the new 3 inch systems. To know what parts you need check the inside of the toilet to ensure you have a free standing overflow pipe (Flush Valve) with a flapper valve that measures 3 inches across. If this is the case then the 2 inch kit will fit properly. For help selecting parts or questions about your toilet contact Fluidmaster’s Technical Service Department. We are available Monday through Friday from 5:30 AM through 5:00 PM Pacific Standard Time. Contact options include: Fluidmaster.com/support to Chat, Email or call Toll Free 800-631-2011.