I created the Henry replacement nut (see here) out of necessity, and now I am doing the same with the other end of the hose!
This is designed to work with the standard hoses Numatic supply (32mm), and standard poles and accessories.
In the pipeline are some custom Henry → DeWalt adaptors, which will use some of this work.
As with my other repair model, all of these parts have been designed to be printable with no supports, and fully backward compatible with your genuine Numatic parts.
If you just want to use the new nozzle, and keep your inner hose connection and retaining clip, no problem.
Worn out just the inner hose connection, or broken the retaining clip? No issue, these are all designed to work in any configuration of old and new.
I have nearly 18 months of continuous use on my other model printed in PETG (hose nut), but this one is not use tested yet, so please update the comments with breakages and suggestions so I can improve these parts to be even more reliable than the originals.
Retaining ring must be printed upside-down, see the attached printable file for all the orientations.
The author marked this model as their own original creation.