air bottle regulator

Hey guys.

i have been looking at reviews about air bottle regulators. 

Found a few which are crazy expensive.

then I came across this

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Does anyone here have one of these?

cant find any reviews on them.

ill attach a video link also

https://youtu.be/2-ToQgCucLg

it looks very nice and easy to use. And it’s even cheap.

1268DKK arround 200USD$$$