J-KEM Scientific Model 200 Digital Vacuum Regulator $450.0 Brand J-Kem Scientific Model Model 200 Country/Region of Manufacture United States Intended Use/Discipline Biological Laboratory condition Used J-KEM Scientific Model 200 Digital Vacuum Regulator in excellent used condition.Resists all organic solvents, acids, bases, waterVacuum fittings: 1/8″ NPTM.Excellent used condition. Power cord included. Two units in comparable condition available, pictures are representative of condition.