55 Gallon drums/barrels TYPICALLY have a 2" NPS, and a ¾" NPS hole. NPS is not compatible with NPT (ask me how I know). This model is for the smaller ¾" threads. This remix only adds the body.stl from the original thing. Still get the cap from there, but you dont need to print the nut anymore.
If you're putting this into an american barrel, try the NPS model first, its extremely likely thats the one you need. I added NPT just in case someone needs it for a non-barrel reason.
The author remixed this model.
The original model is fantastic, but requires you to drill a new hole in the barrel, which I wanted to avoid, especially since the standard drum has standardized threaded holes for just this sort of thing.