Gate valve, Can easily be resized for any size pipe you like. The valve does leak a bit from the threads but it's brilliant for fine adjustment of the water flow entering my sump, it's totally silent and I hardly ever need to adjust it once its set.

Creality

Ender 3

No

Yes

0.2

Just set your walls to 20 and bottom / top layers to 8, I used PETG at e=235, b=50, no retraction, supports bed only 65d degrease