Waste AT fluid will not pollute new fluid. New and used AT fluid windows show the flowing volume. It's equipped over-pressure protection devide to prevent parts damaged. The pressure, machine can adjust flow volume and with oil quality cycle, steam flow window and can control new oil flowing volume which make exchange oil program simple, high efficiency and easy operation. Power: 220V-50HZ-250W Max. pressure: 86PSI(6KG/CM²) Net weight: 26kg New fluid tank: 30L Used fluid tank: 30L