That's the only difference. The shorter one is made to fit inside the hose garage for the CT SYS, the other is the length to fit inside the CT MINI/MIDI hose garage.
Same 90-degree connector, same tapered 32mm-27mm hose diameter, same braided sleeve.
Obviously, not really priced by the foot equally. [wink]
I don't know the model # off hand, but there is a shorter hose that is 27mm on both ends. It has the 90 on the vac end. I bought it to make whips for the 36mm hose.