My aftercooler is between the compressor and the tank, very similar to these pics. I have a qt-54 and the output from the compressor is around 270 and after going through the cooler it's around 15-20 above room temp. After running 20 mins straight, I get very little water in the main tank. This "aftercooler" is a option on Quiney's higher end compressors.
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