Patinas for Metal Artists
Barometric Pressure and Humidity
Photo Processes and Formulas
Science Experiments
Laboratory Procedures
Biodiesel Processing
This quality bell jar is hand blown heavy duty flint glass, with closed top and glass knob. Useful for demonstrations of vacuum procedures.
Use vacuum grease to ensure a tight seal where the glass base meets the rubber vacuum pad.
Vacuum Pump with Pressure Gauge Cat. No. - NC-6678 $28.50
Vacuum Plate, 9.25 inches, for Bell Jar Cat. No. - NC-9315 $25.95
Dow Corning High Vacuum Grease, 150g Cat. No. - NC-1087 $29.95
Bell Jar, 5x9, 1/2 gal. Heavy Duty Cat. No. - NC-8815 $47.95