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| Filter holder with funnel, polysulfone. Can be used with any filtering flask or manifold that accepts a suitable rubber stopper with hole. Comes with one easy-to-use, no twist NALGENE® vacuum gasket (Ref NA-DS0395-0708), which can replace a No. 7 or 8 rubber stopper with 15mm hole. Autoclavable/Patented. |  |
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