Cultiwool 8'' Wide Slab (12 Slabs/Case) - CultileneCultiwool 8'' Wide Slab Cultiwools stone wool growing slabs provide the final stage for growing crops. With the different dimensions and the possibilities of different plant holes pre cut in the slabs, we have a solution for almost every growing system and required substrate volume per crop. Our Cultiwool slabs come standard with a vertical fibre orientation but on request we can also deliver a horizontal fibre in our stone wool slabs. Cultiwool stone