Thermo Fisher, 4516-45D, Pyrex™ Polypropylene Pouring Rings
Thread Size (Metric): 45 mm, Unit Size: Case of 10, Ensures drip-free pouring. Insert Pyrex™ Polypropylene Pouring Ring into appropriately sized bottle neck.
Catalog Number: 4516-45D
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Pack Sizecase of 10

