This spout will fit any container that uses a standard cap as found on gallon containers and various other drink containers.Print with a single shell and 100% fill. Cut a 25mm (one inch) hole centered on the cap. An X-Acto knife is handy but a hole cutter at very slow speed should work as well. Drill a small hole for air in the handle above the fill level of the container. insert the spout from the inside of the cap, screw it on, and you’re good to go.