Tried to post in the technical thread but no one would post my post. Hopefully someone is still using this thread. I'm looking for the sizes of the female ends of the barb fitting that screws on the regulators just below the flow control knobs. I need both sizes as the Tig one is larger than the one used for the Mig welder. Also, I need the inside diameter of the supplied gas hose. The 2 female fittings are a metric size. Thank you for your time!