3 Records Returned 3 Records Displayed.   Click for More Info   Grodan® 15-strip blocks w/holes- 1½" Blocks Each of these 1½" blocks is individually wrapped and easy to handle. These fit easily into larger Grodan® Rockwool Blocks. Great for propagation, they stack neatly together in nursery trays and hold young plants upright and steady. Product ID: GROD15 Category:  Miscellaneous Equipment-Cloning & Seed Starting     Click for More Info   Grodan® Rockwool Grodan rockwool is a natural product, spun from molten diabase, a plentiful volcanic rock. Very little volcanic rock is required to make the wool, since it expands 90 times in volume, during the manufacturing process. Product ID: XROCKWOOL Category:  Hydroponic Systems-Accessories-Grow Media     Click for More Info   Rockwool Starter Cubes Great for seed starting Product ID: XROCKCLN Category:  Miscellaneous Equipment-Cloning & Seed Starting

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