For sale is a Ingersoll Rand Model DS15 42493502 Refrigerated Air Dryer. 232 PSIG Maximum air pressure. 140 Degrees Fahrenheit maximum inlet air temperature. Uses 4.6 ounces of Type 134a refrigerant. Operates on 1/60/115V single phase AC power. NOTE: I have performed a basic "power on" test of this unit: it turns on correctly, but I cannot test its air drying capability.