I saw this pop up for sale locally and I can't find anything after the last 30 minutes of googling. He says you can hook it up to a computer or air compressor.
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...
What is this?
![[IMG]](http://%5BURL=http://s66.photobucket.com/user/islandlogic/media/9052053_zpsm94o0mab.jpg.html%5D%5BIMG%5Dhttp://i66.photobucket.com/albums/h260/islandlogic/9052053_zpsm94o0mab.jpg)
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...What is this?