TubeNet

Hi, I am looking (without any success at the moment) for a new breathing bag, one of 7 or 8 liter size.
I would appreciate it if one can share the wisdom and show me the path to happiness !

Have a great day,
Nim

I have also been looking for a bag over 6 liters (not that I can use it). The only one I found is around 20 liters that is used for horses!

Sounds like a job for two 4-liter bags, a PVC t-coupling, and some duct tape ...