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I then installed a hose and reel I picked up from the local Harbor Freight to use on the lubricated “tool” end of the air line. Note the T-fitting that goes down to the filter and desiccant unit. This is the line for the paint gun, blasting cabinet, plasma cutter, or other uses that require very dry air with no lubrication in the line. Also, note the use of a ball valve at both inlets before the filters. The long line on the left running down is another moisture trap and drain.