Amazon.com: Synthetic Filter Discs 90 mm, Wide Mouth Size, for a Buchner Funnel, Mushroom Cultivation, High Temperature and High Pressure Resistance (16 Pieces) : Industrial & Scientific
12 Synthetic Filter Discs 90mm for a Buchner Funnel and Cut Them fit"Wide Mouth" Size Used for Mushroom Cultivation: Amazon.com: Industrial & Scientific
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