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95 Lincoln St. Denver CO 80203-3922
This molded rubber filter disc is designed to act as support and to seal in place a buchner funnel or filter crucible in the neck of a filter flask. Can also be used to support filter funnels during gravity filtration.
The inside of the opening at the top is 32mm and it tapers to an opening of 14mm. The overall diameter is 75mm. The bottom of the disc is flat so it seals tightly against the mouth of the flask.