Bell jar 7 l

To perform experiments in a high vacuum area without requiring a vacuum or air pressure plate;
thick acrylic vessel; lid (210 x 10 mm) with seal;
sturdy tap, with connector for plastic hose and rubber hose adapter; air release valve;
Dimensions (inner):
D = 190 mm, H = 250 mm
Dimensions (outer):
D = 200 mm, H = 260 mm