The file 'Bottle Trough Feeder 3D Printer Model' is (stl) file type, size is 54.7KB.
This trough feeder was designed to fit a threaded 37mm plastic bottle. The one I had on hand came off of a sink soap dispenser that no longer worked. I use it to hold birdseed for my little feathery frienemy. Should hold water as well, but I haven't tried it.
37mm_feeder.stl | 187.2KB |