GRODAN GRO-BLOCK IMPROVED UNI-BLOCK 8X8X4'' NO HOLE (36)

The Grodan Improved Uni-Block was designed as the ideal stacking block, giving you more choice in your growing configuration. Developed specifically for larger plants, the Uni-Block delivers all the benefits of a Gro-Block as well as the advantages of the popular Uni-Slab: 

• Excellent water holding capacity 
• Higher substrate volume for extra root growth 
• Uniform WC and EC throughout the block 
• Improved control and steerability 
• Solid base for top-heavy plants 
• Larger yields