1.Vacuum pressure valve:-1000~0 mbar 2.When the jar is full ,suction process will be stop automatically. 3.2.5 inch vacuum pressure gage(negative pressure gauge) 4.The quick vacuum switch:BS adapter 5.Easy adjust the pressure valve,clean it conveniently. 6.On-Off fuction:green is ON/white is OFF 7.Safty jar:Effectively prevent backflow when liquid setfull,unbreakable 8.The material of jar is polycarbonate,it can be sterilized at 121 degree 9.volume:2000ml 10.Safety jar:85ml 11.Material of Jar:polycarbonate 12.Can be choose wall slider and 2M suction hose