Thanks for that info, it sounds just like what i need.It's just push fit and takes very little time to install, also easy to change at later date as it comes apart easily as well. I used 22mm from compressor into the other garage and then 15mm drop legs to my filter regulator and drain points. If you need any single pipe lengths you can find it on amazon, the fittings also work on copper pipe as I ran a single length of copper near compressor to help with air cooling.
Would the pushfit seal against copper?Wingback elbow is what you need to go from 15mm to a 1/2 bsp for fittings.
The rest of the system is soldered copper as I have always preferred this method of jointing, once it is complete i will carry out a drop test on it.Pushfits tend to be designed to fit to plastic or copper, still a bigger fan of running air supplies via soldered copper myself.
The copper soldered joints are more air tight than plastic, and the copper does help to cool warm air from the compressor for the moisture trap.
Shady