So there are heaps of ways to go about plumbing a plate chiller, this is just one way. This one I had 1/2" FPT all round.
On the wort inlet you can see a 1/2" male threaded barb fitting. On the wort outlet a 1/2" male-male nipple, 1/2" t piece, 1/2" threaded thermo with 2 or 3" probe, to...