Here is a new Fluidmaster 400A fill valve and a new 3-inch replacement rigid flapper valve for 2987 and 3987 flush valves. If your toilet contains a flapper style flush valve model 2987 or 3987 flush valve, this is a direct fit. With this kit, you do not need to separate your tank from the bowl. Simply change out the fill valve and unsnap the rigid flapper assembly from your existing flush valve and install the new one in its place. When you lift your toilet tank cover off and look at the flush valve itself, the white tube in the center will have the number printed right on the top side. This will be individually wrapped, but not in OEM packaging, as we take these from OEM full cases. If you have any questions at all, do not hesitate to ask. 4194969675. Free economy shipping to Lower 48 States only.