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I eventually found what was I looking and closer to home than I would have hoped for, Denmark, the country next doors :)

http://www.carmo.dk/gb/product/medical/filler-valve/

To me they look...

Or perhaps anyone of you know of another forum where I might find my answer?

Still... I can't let the "coffee-idea" go :)

Oops...
I now have spent HOURS looking for a valve similar to expeds but no luck so far.

Ideas? Anyone?

I like that they are reasonably flat compared to other valves I have found.

Well... I'm not sure that's the valve I'm gonna go with but I appreciate the idea. I found this site
http://www.aliexpress.com/store/group/coffee-one-way-valve/200808_209389893.html
while...

I want to make my own stuff bags and there are a few features I want it to have. In order to make them I need help finding gear and som ideas.

-Made out of silnylon or similar (waterproof).
-Roll...

Hi.

I need help converting measurments to european standards.

When you talk about wheight of fabric you talk about oz. I can easily convert oz to grams but then I run into trouble.

Oz per...