Lost a part, pls identify it from pic

[svabos]

So I've took my K12 for an air conditioner refill and few weeks later I've noticed that one par of the tubing is missing, but I don't know what is it's name/id number and air conditioner service says they aren't responsible and that I've must have lost it...
so anyway, here's the pic of the part, pls help me identify it:

 

[Batfink]

It is labelled in diagrams as the Air Duct and it is all one piece/part (the bit circled, the flexi rubber hose and the part that attaches to front of the engine bay) as far as I can see.

 

[John_D]

So I've took my K12 for an air conditioner refill and few weeks later I've noticed that one par of the tubing is missing, but I don't know what is it's name/id number and air conditioner service says they aren't responsible and that I've must have lost it...
so anyway, here's the pic of the part, pls help me identify it:

The part that you have circled is the air intake baffle box, not apparently available as a separate part, but supplied by Nissan as the complete duct assembly, up to the slam panel, part number 16554BC000. You should however be able to get one cheaply on ebay.