Filament tube

Hello,

Do you have any reference or size for the transparent plastic tube in which the filament is guided to the extruder ?

Thanks

Best regards

diameters: 3mm inner, 4mm outerĀ 

edit: my bad

diameters: 2mm inner, 4mm outer 

I'm measuring 3mm ID, 4mm OD?  2mm only leaves 0.25mm clearance in the tube from filament.

https://www.amazon.com/PTFE-Tubing-3-3ft-Printer-RepRap/dp/B012T98OXO/ref=sr_1_12?s=hi&ie=UTF8&qid=1489404513&sr=1-12&keywords=3mmx4mm+PTFE

Yea, mine are 3mmID x 4mmOD

Thanks!

I ordered both size (id 2 and 3 mm), just before Marcin corrected his post.