Well I'll go to another shop, because they asked me the serial number and some other stuff but not the size...

Can it support around 140PSI?

Well at he CanadianTire they asked me the car's model and I would to know if there is a vehicule using some 1/4''ID breakline...

(sorry for double post)

Are you sure???? IT'S EXACTLY THE CALIBERS I NEED!

Sorry for yelling : I'm so happy!

Can you name me a few sizes please?

But is there any size in break lines or it's just one size?

Well at my hardware store, I only found a 1/2 OD copper pipe witch will be my pressure room. I got a Canadian Tire near my house witch sells some cars features. Maybe I will find a break line of the good caliber.

Do you know where I can find those pipe size? I have heard something about break lines.