CST724 Promenade
Can be had with two different tanks, The S 1.60 gallon and the E 1.28 gallon.
Four different bowls.
C423E round comfort height
C423EG round comfort height with CEFIONTECT
C424E elongated comfort height
C424EG elongated comfrot height with CEFIONTECT
For folks looking at this toilet, it used to be CST724 as the bowl/tank combination, but no longer. Toto has now redone the model numbers on the "new" versions.
Terry has the correct bowl numbers above, but here are the TOILET numbers if you want to order the whole toilet (i.e the bowl and tank). Forget about CST724; it will show as "discontinued". The "new" 2-piece toilet numbers are:
CST423EF 1.28gpf tank,
round universal height bowl
CST423EFG 1.28 gpf tank,
round universal height bowl with CEFIONTECT
CST424EF 1.28gpf tank,
elongated universal height bowl
CST424EFG 1.28gpf tank,
elongated universal height bowl with CEFIONTECT
For the 1.6gpf tank, just change the "E" in my numbers above to an "S".