For sale is a Speedaire Model 3YA51 Refrigerated Air Dryer, Built by Dayton Electric (IL, USA). 25 SCFM Throughput at 100 PSIG and 100 degrees Fahrenheit. 250 PSIG Maximum working pressure. 120 Degrees Fahrenheit maximum air temperature at inlet. Uses 7 ounces of R134a refrigerant. Operates on 1/60/115V Single phase AC power. NOTE: I have performed a basic "power on" test of this unit; it fires up and runs quietly. I cannot do a full test of its air drying capability, but it does appear to be in good running condition. Several identical 3YA51's available.