Manufacturer: AMERICAN STANDARD
Lid P/N: 4049
Lid Size: 20.875 x 8.25
Tank P/N: 4049
Tank Size: 20.25 x 7.75
Toilet Model: CADET or NEW COMPTON or PLEBE

Note: This tank lid has a small 1/2 diameter hole in the middle of the top. We are not positive but believe the hole is used for some kind of locking mechanism. It will function perfectly fine if you dont have the locking mechanism, you will just have an open hole in the top of the tank.