[Little_PB_Newb]

I got a new charleton tank today and instead of 68ci it says 15.4cc. From what I understand, cc means cubic centimeters under the metric system and ci of coarse we all know to be cubic inches. My question is, because I know for a fact (being canadian and all) that a centimeter is significantly smaller than an inch, why is it 15.4cc? Every conversion calculator I've googled gives me an answer in the 100's for 68ci into cc.

[Tabris17]

Not sure honestly. My 70/4500 says 12.1 cc on it. Never noticed it before. Probably stands for something else, I wouldn't worry about it as long as you got the right size.

[Little_PB_Newb]

it doesn't say 68ci lol I'm just very curious.

[Bulldogg]

The cc listed has to do with acceptable expansion while hydro testing, not total volume.

[Little_PB_Newb]

Ah, I was told that when I first started actually, I had just forgotten. Thank you