I don't recall the brand, but i did see some 17" high commodes at the blue big box store. They also refer to them as chair height commodes. The also make an attachment for standard height commode's that will raise the height about 3 or 4 inches. The one i installed , i removed the toilet seat and it attaches right to the commode.

If they are labled "Comfort Height" these are the taller ones which meet the ADA requirements for 17"-19" seat height. 15 1/2" and lower are standard height. I like Kohler but any with a rim height of 16 1/2" or greater.

Take Care,

Dan