Plastic with fluid inside Can anyone help with a node setup for the plastic and the fluid inside it?

This is my reference picture:



I have already modelled some of the containers and the liquid inside, but I wanted to create a more photorealistic render.

Here is what I have so far:



As you can see, the material is either too transparent (and it looks glassy) or too opaque (and you can't see the fluid inside). Any help is appreciated.

Here's my .blend file: 

EDIT: Here's my render after playing with Michael Ben David's setup:



Still figuring things out, but it already looks pretty good!
I played around a little bit and came up with the following setting for the plastic and the fluid, I think it comes close to the real anti-frost fluid/container and by changing the settings slightly you should get what you want. I would also make the walls thinner, in the corners you can see that there is still quite a lot of plastic