Air Vent Heater hose?

I need to replace my air vent heater hose and I'm not sure of the actual part name or number that I actually need. I've come across several different hose parts for the A/C and Heater:

-Fresh Air Intake Box Hose
-Flexible Snorkel Hose for Jeep
- Heater Defrost Hose
- Jeep Fresh Air Hose for Air Box


The hose I need to replace is an accordion style hose that's 3" to 5" in diameter and I've been trying to find a parts list for A/C and heater parts or to find a diagram I could use but haven't found what I've been looking (or should be looking) for.

Any help would be greatly appreciated. Thanks