Space Saver Clear Base Vacuum Desiccator

Bel-Art Products, 42022-0000, 190 mm Diameter Space Saver Clear Base Vacuum Desiccator190 mm Diameter Space Saver Clear Base Vacuum DesiccatorThe unique shape offers maximum interior clearances for more or larger contents without further crowding the benchtop. The thick walls ensure a rugged shatter resistant unit that simply stores a vacuum or stays sealed even if not under vacuum.The included polypropylene stopcock has a vivid, red handle to immediately determine its orientation and a port that accepts 1/4' (6.4mm) I.D. vacuum tubing. The top section can be lifted off using the large ribbed knob at the top center. A Neoprene O-ring offers a secure seal, which does not require grease, but is unaffected if grease is applied. A rigid, perforated polypropylene plate, 3.2 mm (1/8') thick supports the contents and leaves space underneath for desiccant backup if desired.The plate is removable and can be replaced with Scienceware® High Heat Desiccator Plates (catalog numbers F42038-0140, F42038-0190, F42038-0230 depending on size) to support hot crucibles.Features:Small footprint with 13% more interior volume than typical desiccator domesPolypropylene lower section has excellent chemical resistance and can be used with incandescent crucibles supported on porcelain platePolypropylene stopcock with a Teflon® PTFE plug controls airflow to gently release vacuumStores full vacuum 29.9' Hg (759mm) at room temperature for 24 hours without need for vacuum grease.