Valve Knob for hose Y.

I found this Y at our community garden where someone had tossed it aside after losing both knobs. We eventually found one (the black one in the picture. I was a little worried it wouldn't work in petg (the original part's mating bit was metal) but it seems to work fine.

No supports. Attached g-code is sliced for 100% infill. Uses a 3mm x 10mm machine screw.

Also freecad sources if yours is slightly different.