I would like to install a pass through in a keezer I am building to be able to connect a pump from the outside and a beer line on the inside to clean my beer lines. the idea is To have some sort of quick disconnect on the outside with a corny keg ball lock on the inside. I though I saw something like this in the diy thread but my searching is not coming up with any ideas for such a passthrough. My pointers on the hardware I would need,, my collar with insulation will be about 2.5 inches thick