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These Heavy Duty 2.2 Millimeter Sealable Mushroom Bags come in a bulk pack. They feature a 0.5 micron filter patch. Each bag is autoclavable and durable to allow easy 100% sterilized premium mushroom growing in bulk to provide substrate conditions. These bags ensure mushroom growth is fortified with all necessary vitamin's and minerals. Additionally, the bags allow for guaranteed excellent moisture content and balanced PH; perfect for fully colonized spawn.
2.2 Millimeter Polypropylene/PP Breathable Spawn Bag: