Description
Description
13-425 Replacement Septa, Minum-Ware. Replacement septa for use with MW-102 open-top screw caps on Minum-Ware glassware components. Septa are made of silicone rubber with one side having a RED PTFE face, while the opposite side has an ultrathin covering of polypropylene to prevent needle coring when penetrating septa, except for the 20mm size which has red PTFE on both sides. Sold in packages of 12 or 144 each. Made in the United States.
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