I am after a inline fan switch pipe 32mm with m22 fan fitting like this one but they are out of stock and do not have a delivery date.
Struggling to find one.
i made my own, got a piece of steel tube of the right size, drilled a hole and araldited the switch in, it never leaked.
Try Merlin Motorsport to see if they have the thread option you want in stock:
[Edited on 16/2/20 by Mike Wood]
Unfortunately do not do one with m22 thread.