75mm Glass Funnel, Short Stem, Borosilicate Glass, Heavy Wall, Karter Scientific 213V5 (Pack of 8): Science Lab Short Stem Funnels: Amazon.com: Industrial & Scientific
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40mm Glass Funnel, Short Stem 3.3 Borosilicate Glass Funnel for Science Labs and Home Kitchen Use, HUAOU, Pack of 2: Amazon.com: Industrial & Scientific