Super Fine Grade Vermiculite - 4 Cubic Foot Bag



This product ships to the contiguous USA only. This product does not ship to PO Boxes.

Super fine (Grade A1) sized horticultural grade vermiculite. Super-fine vermiculite is commonly used as an ingredient in mushroom substrate cakes, such as PF-tek style cakes. The PF tek recipe is: 2 parts fine vermiculite, 1 part brown rice flour, 1 part water.




$54.95

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