Leifheit Cleantenso water bottle cap replacement

Our Leifheit Cleantenso steam cleaner's water bottle cap partially broke, couldn't get a replacement, therefore together with a good friend we've designed a 1-to-1 bottle cap. Not only it fits perfectly, but also works as intended (which may or may not be surprising). Added knurling afterwards (needs it, especially in PETG). There's also a collar that fits on top because the original might break when disassembling the part (mine did)

The part is under no stress, nor does it see any temperature, so feel free to use any material available. Print with supports

Credits to https://www.printables.com/@0sy_1388309 for helping