Cultiwool 6" Wide Slabs of Cultilene Rockwool - Case of 16Description Cultiwool 6'' Wide Slab (16 Slabs Case) Cultiwool 6'' Wide Slab (16 Slabs Case): Cultiwools' stone wool growing slabs provide the final stage for growing crops. Cultiwool stone wool is used worldwide by professional cultivators. It allows them to grow top quality produce with fewer inputs. The basis of a successful crop for a longer period is a substrate with a superb and consistent homogeneity. Cultiwool 6'' Wide Slabs are sold by the