No, this is a floor model but it's a back outlet.
No you need a pressure tank , not a gravity feed ballcock
No.. if you buy it from Home Depot, it comes broken from being mishandled
I don't know. Check the specifications sheet. You should be able to find the answer there.
This toilet bowl is a rear exchange. It connects to the wall, you use a rubber seal. It goes to the sewer. You would also need to buy the tank, most likely the holes from other tanks will not line up.
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This model has a back outlet flush.
Please see the attached spec sheet and look under the notes section. It will let you know measurements and any other information you will need to know. http://www.americanstandard-us.com/assets/documents/amstd/spec/SpecSheet_2664.pdf