Additional info For the GRACO Matrix system. It makesit possible to control the air supplyof one or several drum vacuum pumpsTechnical Specifications: -Pneumaticpressure range: 1.7 - 10 bar -Max airflow rate: (2.6m3/min) -Electricalpower supply: 120-240 VAC - 1A Pneumatic pump controller Matrix® EAWHLIMI2G