This polypropylene vacuum desiccator with transparent polycarbonate covers will hold a vacuum of 740mm of mercury (29") for 24 hours. They are lightweight and shatterproof with no danger of implosion, even under full vacuum. A neoprene o'ring is encased in a groove of the bottom polypropylene section that provides an excellent seal with the upper polycarbonate section. The vacuum retention value with plug operates by slowly turning the plug to allow entrance of air without damaging crucibles. A removable pan is included to hold drying agents.

Optional desciccator plates fit into bottom section, sold separately.
#D6025     141mm diameter   Fits into #D3025 Desiccator     10/cs
#D6045     190mm diameter   Fits into #D3045 Desiccator     10/cs  
#D6065     239mm diameter   Fits into #D3065 Desiccator     10/cs

The 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 5/16" to 3/8" (8-10mm) 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 High Heat Desiccator Plates (not included: catalog numbers F42038-0140, F42038-0190, F42038-0230 depending on size) to support hot crucibles. Replacement parts are available.

Small footprint with 13% more interior volume than typical desiccator domes
• Glass transparent, shatter resistant polycarbonate upper section offers unobstructed viewing of contents
• Polypropylene lower section has excellent chemical resistance and can be used with incandescent crucibles
  supported on porcelain plate (not included).
• Polypropylene stopcock with a PTFE® PTFE plug controls airflow to gently release vacuum
• Stores full vacuum 29.9" Hg (759mm) at room temperature for 24 hours without need for vacuum grease
 
Flange O.D.: 171mm
(6-3/4")
Inside Diameter: 149mm
(5-7/8")
Plate: 140mm
No. 3
Overall Height: 206mm
(8-1/8")
Clearance above Plate: 121mm
(4-3/4")