hvac vacuum pump with vsd technology

{"cid":"91201801","title":"AC Vacuum Pumps GHS 350-1900 VSD+ Series With Variable Speed Drive","imgUrl":"https:\/\/img.chinax.com\/nimg\/40\/39\/db1c314e5f1632a6e9e5b4d35e72-200x200-1.jpg","attrs":{"Price":"be negotibled","Brand Name":"Atlas","Model Number":"GHS","Minimum Order Quantity":"1 pcs","Delivery Time":"7-30days","Certification":"CE,ISO","Place of Origin":"China","Payment Terms":"T\/T, Western Union, L\/C, D\/P, D\/A","Supply Ability":"100pcs per month","Packaging Details":"Atlas standard packing","Model":"GHS 350-1900VSD+","Ultimate Vacuum":"5 Pa","Material":"Aluminum Alloy","Weight":"12.8 pounds","Usage":"Industrial\/Commercial","Power Source":"Electric","Inlet Port":"1\/4 inch","Color":"Silver"}}