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Enabling hands-free use and helping to prevent badge loss
Speaking diaphragm is designed to help provide easier communication
Clear polystyrene offers complete visibility
and fire-resistant
and safe stretching while preventing overstretching
Bel-Art Products Lab Companion Round Vacuum Desiccator F42400-2041 - 1.0 Each - MDL-BRTF424002041 HA Autofocus CMOS Cameras Enabling hands-free use and helpingBel Art Products Lab Companion Round Vacuum Desiccator These high quality vacuum desiccators stay gas tight, allowing reliable dry storage or experiments over extended periods Able to maintain 29" Hg vacuum for over 72 hours at room temperature Viton 3 way valve offers consistent and uniform vacuum draw, vacuum release or gas exchange Vacuum level checking is simplified with built in analog vacuum gauge at top of unit High quality silicone O ring and