This funnel was designed for liquid nitrogen filling and therefore has a wide inner hole and a gas vent on the outside. I tested it and it works, although the noises of the ABS contraction are quite audible, but it is withstanding prolonged use.

Please be careful and do small tests before using it with hazardous liquids because I cannot guarantee safety in any situation.

I recommend filling the part more than 50% and it doesn't need supports if printed with the opening facing down. Use ABS or PET-G.