I got this one
and it worked so far for my 2" hole. I also plan on using it for my 1.5" hole.
I got these two female
couplers. When they arrived I thought I could have just used the first socket weld one but it wouldn't let me pull the reducer through enough. Glad I got the 2" coupler.
I dimpled out - but I am wondering how to solder it up tonight because I want to coil it around the T-C fitting on the inside, to fill the dimple. Will I have to heat it from the inside or can I heat the fitting from outside the keg (underneath) and and let the solder flow that way???
I wish I would have seen that fitting. I wanted one like that. It should work, I think those are inside measurements and OD should be around 2.375 based on this
site, but hopefully someone else can chime in.