brake vacuum hose

[fraggle69]

Can I only get this item from a dealer?  i had to utilise part of the hose to get another car working asap.  Anyway as I near completion of my head gasket job, I'd really like to get this part.  Wondering if there is an OEM part or will any hose of the right size with a check valve work?  

My car is a 2004 2.5 NA, so if anyone knows the diameter of the hose and length, I may just make one up.  Ofcourse, I suppose I can call subaru, but I am pretty sure that's gonna cost me.  Although to be fair, I really needed that hose at the time lol.