It's smaller than I expected (which is a good thing) but it lets a lot of air through, enough for my 650 lb ft impact wrench! For my system I had to configure it for right to left flow (no big deal - there is a sealed manifold/mounting bracket with an o-ring connecting the filter and regulator - so just unscrew the two screws and reassemble No leaks worked first try Great $9 deal I can get another one for my other output line.
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