Sealable vessels for drying materials via the use of a drying agent and a stopcock/valve for rapid evacuation of air and moisture; available in a range of sizes and materials such as glass and plastic, including amber glass for light-sensitive materials.
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Upper and lower sections, neoprene O-Ring, stopcock, 0.32cm thickness polypropylene perforated sample plate, tapered polypropylene stopcock with PTFE plug and red handle, flat dome clear polycarbonate top with large ribbed knob