OK, according to Newegg, the Ultra 120 is 160.5mm tall. In google, plug in "160.5mm to inches" 160.5mm to inches, and you get 6.3 inches, which is 7.5mm taller than the TT, so yes it should just fit.
Edit because the forum butchered my google link.
Edit2 because my 1 month old has me sleep...