Grodan Rockwool is consistent, sterile, and provides a perfect ratio of media to aeration. As a result, commercial farms yield more per square foot and with less variation in harvest weight.
The Grodan Improved Uni-Block was designed as the ideal stacking block, giving you more choice in your growing configuration. It was developed specifically for larger plants, to increase yields, with a solid base for top-heavy plants. The Uni-Block has excellent water holding capacity and provides a larger substrate volume for extra root growth. 8"x8"x4" block (case/36).
These are 8" x 8" x 4" UNI-BLOCKS that come 36 wrapped blocks/case.
We do not ship these UPS. They can be will-call picked up or delivered by our Fleet or common carriers (pallet is 12 cases to optimize for freight).
