Can you help me with Oetiker clamp sizes?

[Broken Crow]

@WesBrew 's thread; In-line solution to Prevent CO2 bottle leak down ? got me thinking about my next planned upgrade...my problem is that owing to brain-damage I've lost a massive amount of knowledge I grew up with, especially anything to do with numbers or comparative measures.
My next planned upgrade for my CO2 lines is to buy a roll of 1/4" ID EVABarrier(3/8" OD) and rather than use duotights, I want to swag it over 5/16"-barbs on SS swivel-nuts and fasten with oetikers...but I don't remember the rules for choosing which size clamp to use.

 

[DonT]

I believe these are the droids you're looking for...

 

[cubalz]

Go on the Keg Connection website, they tell you how to properly size for the tubing OD. I went on their website and bought some of many common sizes and built a kit according to tubing used in my brewhouse. They are dirt cheap and don't forget to buy the crimp tool.

 

[IslandLizard]

They are dirt cheap and don't forget to buy the crimp tool.

Yes, like 5-20 cents a piece.
Although a dedicated crimp tool ($30-50) is nice, just using "pincers" (Harbor Freight or hardware store) will crimp them just as well.