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Inert to agricultural fertilizers
Ideal for drying large quantities of plant material like herbs
***Please note – ProFilter is only suitable for systems which run 1/2” flexible hose
The result is a higher yield with a strong
Black Swallow Pumice Stone 3/8" X #8-21 Size:11L (3 Gal) Bag Inert to agricultural fertilizersPlease Note This product is oversized, and does not qualify for free shipping. Adding it to your order will remove your free shipping option. Order oversized items on a separate order to avoid extra shipping charges. Pumice is a relatively light weight volcanic, porous, stone material that is popular on the west coast to provide aeration to soil mixes. Because it is a stone material, it does not break down in the soil. Its porous nature allows it to
