We recently made a purchase of some final separators at a great price. New and unused, these separators were found on many military models of high pressure air compressors such as DAVEY and JOY. Originally built by Aero-Dri Corp. these forged steel separators are designed for 5,000 PSI service. They incorporate a very effective design in removing the moisture and oil particles from the air stream before entering the purification tower. All connections are 1/4 female NPT. Inlet is at top center, drain is at the bottom and the air out is on the upper side. Overall height is 15 inches, and the diameter is 3.5 inches. Weight is 26 pounds. Comes with the two mounting clamps shown for surface mounting. A great value at this price!