ROCKWOOL 3" Block - Box 384/cs 2.77EC 5% Tocopherols 150-300 mg/kg Chromium

5% Tocopherols 150-300 mg/kg Chromium (Cr) 1-2 mg/kg Vitamin C 100-2000 mg/kg Cobalt (Co) <1 mg/kg Vitamin B12 0

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total dissolved solids (tds)

Any forced ventilation rooms should be equipped with this type of control to promote faster and more vigorous growth

gentle mixing of vermiculite up to one-half the volume of the soil is recommended

ROCKWOOL 3" Block - Box 384/cs 2.77EC 5% Tocopherols 150-300 mg/kg ChromiumCase of 384. Grodan Delta 4 Block 3 by 3 by 2. 5 Inch No Hole, Strip of 8 Blocks. Gro Blocks are similar to a plant container. Need a 3 in pot? Then choose a 3 in Gro Block.