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These high-quality vacuum desiccators stay gastight allowing reliable dry storage or experiments over extended periods. Able to maintain 29in.-Hg vacuum for over 72 hours at room temperature, they provide vacuum integrity resulting in lower maintenance and greater peace of mind. A Viton&#174; 3-way valve offers consistent and uniform vacuum draw, vacuum release, or gas exchange. Vacuum level checking is simplified with a built-in analog vacuum gauge at the top of the unit. A high-quality silicone O-ring and specially designed locking ring allow outstanding vacuum capability with virtually no leakage. Amber tinted UV blocking models block 100% of UVA, B, and C light to minimize damages or discoloration of light-sensitive samples. Constructed of transparent polycarbonate, these desiccators are durable, easy-to-clean, chemical-resistant, and allow quick visualization of the desiccator contents. A locking ring secures top and bottom halves when vacuum not in use and provides additional convenience and safety when moving the unit. Desiccant tray is included (desiccants sold separately). Use with any vacuum with free air capacity of 1.5 cubic feet per minute (CFM) ft or greater. <br><br>

Bel-Art F42400-2221 Lab Companion Clear Polycarbonate Round Style Vacuum Desiccator, 20 Liter

f42400-2221-lab-companion-clear-polycarbonate-round-style-vacuum-desiccator-20-liter

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