Three way 3/4" threaded adapter

For a small renewable energy project, which I'am about to start, I was in need of a 3-way pipe adapter.

I know you can just buy these on Ebay but I'am cheap and 3D-modelling is a lot of fun, so I decided to make one myself, which is 3D-FDM printable.

Note: Until now I have never tested if this will hold any pressure at all so do not use this in any permanent installation!