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Buchner funnel rubber stoppers are specially fabricated rubber stoppers that accept polypropylene Büchner funnels. There are two available sizes.

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Product Details

Specially fabricated rubber stoppers that accept polypropylene Büchner funnels. Stopper Size No. 6 will fit a 250-mL filtering flask, while stopper Size No. 7 will fit a 500-mL filtering flask.