Bell Jar with Knob
Bell Jar with Knob is a dome-shaped vacuum accessory used to enclose and isolate experimental setups under reduced pressure. Made from thick borosilicate glass or impact-resistant acrylic, it features an integrated knob at the top for safe handling and positioning over vacuum plates. Its transparent body allows full visibility of internal processes while maintaining structural integrity under vacuum. Commonly used in laboratory and industrial applications, it supports vacuum experiments, sample isolation, degassing, and pressure-related demonstrations.