It is a brass "street elbow" (I think that's what it is called) from Home Depot.DangerIsGo said:sprocket, what is that gold elbow?
The biggest problem is that there is a restriction in it...I simply put it in a vice and drilled it out on a drill press so there is the full .380 channel (not great I know, but the biggest it would take).
Your ST supplied straight barb would thread right in although I used one from my Storm block (I just retapped it to take the DD "hi-flo barbs).