For sale is a Thermal Transfer Products, Ltd. Model AO-5 Oil Chiller, Serial No.C-27759. Unit labeled: Operating Pressure - Tubes 300 PSI / Temperature 400 degrees Fahrenheit. 1/4 HP 3/60/208-230/460V dual voltage AC drive motor. Unit manufactured in the USA. NOTE: this oil chiller was removed from a very nice tracer lathe at a local manufacturer's plant that has been closed-down due to production consolidation.