Toto ST454 9 Tab Version Left handed which is linked below under

which is linked below under related items

They are interchangeable

Note that this tank uses the lid 3-742

Lid P/N: ST864 or TCU864CRP

Toto ST454 9 Tab Version Left handed which is linked below underManufacturer: TOTOLid P N: TCU454 or ST454 (version with 9 tabs on the underside of the tank lid)Lid Size: 16. 5" x 8. 5"Toilet Name: Drake IITank P N: ST454Tank Size: 16. 5" x 8. 5" This tank lid has been revised by Toto. There are two versions. You can identify the differences either by counting the number of tabs on the underside of your lid (5 vs 9) or by measuring. The difference is only 1 8" in both directions so it is important to measure