First the label on pack of six says 1 micron in the top text and then 5 micron in the symbol in the lower left corner of the same label. Each individual filter label says 1 micron. They look exactly like the 5 micron string filters I used. But since I've had good luck with 5 micron filters, and since this particular item costs LESS than the ones properly labeled, I decided to give it a try. Haven't used one yet, but whether it's 1 or 5 microns I expect to be satisfied. continue later.
NANPU 1/2" NPT Air Drying System - 5 Micron Particulate Filter, 0.01 Micron Coalescing Filter, Air Pressure Regulator Combo - Semi-Auto Drain, Poly Bowl W/Metal Gauge
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