Foam Stopper for 1 & 2 liter flasks

Foam Stopper for 1 & 2 liter flasks

SKU: STPF001

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$2.29
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This foam stopper is perfect for making starters. The stopper allows oxygen into the flask which is necessary while making the starter. Easily fits all our Erlenmeyer Flasks and can be boiled or autoclaved to sterilize.

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