Quote:
Originally Posted by lemiant
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FIRST requires 1/8" NPT, but that's just the diameter of the airflow cylinder (technical term anyone?... NPT I guess

). The threads will vary. All of the brass fittings and quick connects teams usually get (including all the ones posted so far, I think) have the same standard thread (not sure exactly what it is). However, the newer Festo (and SMC I believe), while they have the same NPT, they have a different fitting that you have to buy from the mfgr (as far as I know), which uses the M7 you are seeing on their website. These interface with the rest of your interface then with the standard 1/8" NPT tubing between the two different types of fittings.