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This flat bottomed borosilicate filter flask has tubulation for ease of connection to filter pumps. It is ISO certified, has heavy-duty wall and permanent graduations. Tubulation: 3/8". NC-13869
This flat bottomed borosilicate filter flask has tubulation for ease of connection to filter pumps. It is ISO certified, has heavy-duty wall and permanent graduations. Tubulation: 3/8". NC-12621
This flat bottomed borosilicate filter flask has tubulation for ease of connection to filter pumps. It is ISO certified, has heavy-duty wall and permanent graduations. NC-11905
This flat bottomed borosiciate filter flask has tubulation for ease of connection to filter pumps. It is ISO certified, has heavy-duty wall and permanent graduations. NC-11904
The vacuum pump is made of a durable polychloroethylene plastic and is light weight and can provide a vacuum of 50mm HG by pumping its handle. NC-6678
