Quote:
Originally Posted by Scared Silly
Here is a quick check. Does the back of the valve have a dimple in it? The dimple will be directly in line with center of the valve. If so this is where the yoke knob would screw into and as such you have a pro valve and all you need is the yoke insert. If no dimple more than likely it is a 300 bar valve and if you want to use a yoke valve you will need to replace the valve. In this case get a pro-valve that can be either.
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Oddly enough, I've seen a tank that had a 300bar valve in it that had dimples. Don't understand why, but there are some out there.
The easiest way to tell for me, is the threads in the 300bar are about an inch long, where as the 200 bar is less than 1in.