Laundry Liquid Draining connector

I like to get everything out of the laundry detergen bottles, some have those internal fiddly bits inside that stop the last liquid coming out, so I made this to help.
The bottom is threaded and double walled so the liquid goes straight into the larger container with no mess. (The blue on the larger bottle is from tipping in liquid by hand!)
The top is a friction fit.

I used a couple of models to help me make this:
https://www.thingiverse.com/thing:49597
https://www.thingiverse.com/thing: