Stupid question: Where can I get more filament tubing?

I want to run filament in the guide tubing from a drybox all the way to the dual module, so I need longer lengths of the tubing that came with the toolhead. It’s not standard Bowden tubing, which is 1.9mmID / 4mmOD. This stuff is more like slightly over 2mm OD. I don’t really want the hassle of changing out the quick-connects so I’d like to just get 6 feet or so of the tubing that comes with the Snapmaker, but I’m having trouble tracking it down.

Anyone know where I can source it?

PTFE tube 4mm OD 3mm ID is what you want to find, I get it on Amazon here in the US but I don’t know what is available where you live