Grodan improved GRI 4 75x75x65 stone wool block

฿12.50 (inc VAT)

  • Easy for transplant from AO plug;
  • good for both veg area and transplant later to flower;
  • shrink wrapped foil;
  • can be easily used in combination with Smart tray

Available on backorder

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Grodan improved GRI 4.  GRI 4 is the latest developed product of Grodan. The GRI products offer you an optimum result throughout the cultivation.

Grodan Improved uses a new Advanced Wetting Agent. These leading edge Grodan stone wool blocks have the optimal fiber structure and physical proper- ties for crop uniformity, more even Water Content (WC) and Electrical Conductivity (EC) distribution throughout the entire block, and the greatest steering capabilities available. Water distribution is more uniform throughout the entire block which is the basis for a well-defined root system with higher capaci- ties for water and nutrient uptake to produce robust and vigorous crops. These benefits translate to higher yields, improved quality, less water and nutrient usage, and reduced sensitivity of the crop to diseases.

Key features

New and improved wetting agent and hydrophilic technology greatly enhances the water characteristics of Grodan Gro-Blocks Improved giving even better water distribution over the height of the block. This results in greater plant development and steerability and more efficient use of water and nutrients.

Optimized wool structure allows for faster rooting-in and nutrient solution replenishment, all while the Gro-Block Improved maintains its structure, firmness, and rigidity throughout the growing process.


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