Nalgene 单向阀与正向连接器,高密度聚乙烯,硅胶隔膜 Prevent back pressure with aspirator-type vacuum pumps using the Thermo Scientific Nalgene Vacuum Check Valve and Pressure Connector. Designed for use with 1/4″ (6.35mm) to 5/16″ (7.94mm) ID tubing, they work best between 10- and 28- in. Hg. Features:
Note: Not for use with liquids. |
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