Commercial-Scale GR6.5 Blocks for High-Volume Hydroponic Production

The Grodan® Gro-Block Improved GR6.5 Small is the result of a research partnership between Grodan, Wageningen University & Research, and top commercial growers across North America. At 4"x4"x2.6", this block delivers uniform water and nutrient distribution with Grodan’s most advanced steering capabilities — now available loose on pallet for high-volume operations.

Key Features

• 4" x 4" x 2.6" small format block with pre-cut plant hole — GR6.5 grade
• Loose on pallet — high-volume commercial format for large-scale operations
• Advanced Wetting Agent (AWA) for optimal fiber structure and uniform WC/EC distribution
• Improved hydrophilic technology for enhanced water distribution over the full block height
• Optimized wool structure for faster rooting-in and nutrient solution replenishment
• Maintains structure, firmness, and rigidity throughout the growing process
• Reusable and recyclable — part of Grodan’s sustainable growing program

What’s Included

Blocks loose on pallet, commercial bulk format. Intended for commercial use.