Manufactured from natural rubber with conical body form. Designed to fit Buchner and Gooch funnels. Can be used also reverse cleaning of filter crucibles and as a support to standard funnels. Conical body form guarantees perfect fitting of funnels, filter funnels and crucibles to the filter flask necks. Supplied as a set of 7 different size adapters which guarantee perfect fit to all filter funnel necks with different volume sizes.

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