Grodan Rockwool 36/40 Sheet of 98 Cubes 1 in. x 1 in.
Grodan rockwool is an excellent quality stonewool substrate with a very high water holding capacity. Rockwool is absolutely free of disease, salts, and weed seeds. It has no Cation Exchange Capacity (CEC) so the grower can take advantage of a nutritional program specifically tailored to the crop being grown.
Weight | .5 kg |
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Dimensions | 12 × 20 × 2 in |