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20x24" contact printing frame
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07-15-2008, 03:29 PM
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glbeas
Join Date: Sep 2002
Location: Roswell, Ga. USA
Posts: 2,883
Right, theres a bleed valve and a vacuum gauge on most, my NuArc has it. You can set the vacuum from full to nothing with a twist of the valve.
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Gary Beasley
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