Can't Figure Out What Toto Drake Bowl I Have

[Sam78]

My bathroom is undergoing a remodel and I'm hoping to replace my current Toto Drake toilet with an identical one in a different color (we have bone and the new one needs to be white). I know that it is a two-piece Toto toilet with a Tank Model Number of ST743S #03. I can't seem to figure out which bowl I have since there is no model number on it. I've tried contacting Toto and they haven't been helpful. I thought the shape was elongated, but now I'm second-guessing myself. I have a serial number from the bowl, but that's also gotten me nowhere. I've spent days on trying to understand the options and I'm just getting more and more lost and overwhelmed. Any help would very greatly appreciated.

 

[Terry]

What you have now is:
Bowl C744S-03
Tank ST743S-03

The exact replacement in white would be
Bowl C744E-01
Tank C744S-01 for 1.6 gallons or C744E-01 for 1.28 gallons

Or the new Drake 2021
Bowl C776CEG-01 for standard height elongated
Tank ST776EA-01 for 1.28 and ST776SA-01 for 1.6

 

[Sponsor]

 

[Sam78]

Thank You So So So Much! Just a couple of follow-up questions....

1. What does it mean that the current Bowl model number ends in S (C744S-03; which I think meant G-Max), but the exact replacement model number now ends in E (C744E-01)?

2. Can I assume that my current is 1.6 gallons (instead of 1.28 gallons) from the markings on it (the stamp inside the tank and the stick on the bowl) that both mention 1.6GPF?

3. I'm assuming that this is also probably the soft-close seat?
4. Was I correct that it is elongated?

Thank You!

 

[Terry]

The first TOTO Drake bowls were all 1.6
Then they came out with 1.28 bowls that worked with both tanks.
Yes, it's the original softclose seat, elongated.
I've sold and installed a few thousand of those configurations over the years.

The new Drake CST775 round front. The ST776 tank works on the old bowls.

 

[Reach4]

In whole toilets, S = G-Max Flush, 1.6 gallons
E = E-max, Ecoflush, 1.28 gallons
U= 1 gallon

For parts of toilets the relationship seems to differ.