This is a 2-piece, glue together design that avoids the need for supports during printing. There is a radial location feature to aid in the glue process. During gluing, the spout can be clocked straight with the funnel bend, or off to the side to create a compound angle if desired. It is meant for general purpose use, but I use it primarily to pour fuel additives in my boat gas tank.

I used these print and assembly parameters:

Adhesive: Loctite Liquid Superglue
Layer Height: 0.2mm
Material: PETG
Perimeters: 4
Supports: None
Nozzle Diameter: 0.4mm