No, this does not come in comfort height, it comes in standard height.
No, you need to purchase the wax seal.
The base says 1.0GPF
Yes, this toilet comes with a 10-inch rough-in.
NO. PRESSURE IS SUPPLIED BY INFILLING WATER COMPRESSING AIR IN A BLADDER.
Yes, this is a great toilet for any restroom. I love this tolet because of the pressure contained in each flush. Before installing this toliet, my old one was always getting clogged. Zurn fixed that problem.
This type has a completely self-contained pressurizer inside the tank which contains the water and air (the tank itself does not hold the water, a float, and flapper, like some of the other toilets marketed as "pressure assisted".
No, it only comes in white. That is on the catalog.