I thought I read above that it was a conversion kit or something so I just assumed it was to swap from M22 to 3/8". It’s probably all 22mm stuff except for the garden hose qc. The qc I marked in red is probably a M22. Take the one I marked in yellow and see if it’s screw on the end of the red.
While you’re at it figure out what size your pump outlet is. Take that fitting I marked in yellow and see if it screws on the end of your pump where the pressure hose is hooked up. You need to just do away with all of the m22 fittings except the one that might needed to adapt your pump outlet to 3/8". It’ll just be easier in the future dealing only with 3/8.
The ball valve is 3/8". It says it right on the side.
