12 Synthetic Filter Discs 90mm for a Buchner Funnel and Cut Them fit"Wide Mouth" Size Used for Mushroom Cultivation 12 Size:12 The tension of the spring

The tension of the spring

Average outdoor durability is 8-10 years (Average expected outdoor life of product will depend on user definition of failure

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12 Synthetic Filter Discs 90mm for a Buchner Funnel and Cut Them fit"Wide Mouth" Size Used for Mushroom Cultivation 12 Size:12 The tension of the spring12 Synthetic Filter Discs 90mm for a Buchner Funnel and Cut Them fit"Wide Mouth" Size Used for Mushroom Cultivation Any Regular Mouth 70mm canning jar which are commonly used . Any wide mouth 87mm canning jar which are commonly used. Any wide mouth 90mm canning jar which are commonly used. Read more Can be used within a pressure cooker, steam sterilizer or autoclave,You can also DIY them into regular mouth size or any other smaller sizes. Used for