GRODAN - DELTA 4G/1" ROCK WOOL CUBES WITH HOLE 40/35 BOX OF 384pcs | 7,5x7,5x6,5h cm

Grodan Delta 4' are small rock wool cubes measuring 7.5x7.5x6.5h and a round hole measuring 4x3.5h cm.

One central hole: 40 mm diameter - 35 mm deep

The Grodan Delta 4" can be placed in a tray (flat) without support for easy transplanting of cuttings. They are individually packed to minimise algae growth. Each block has virtually identical density, flexibility and strength, ensuring an even distribution of water, EC and pH to produce a uniform, high quality plant.This promotes the development of a strong root system during propagation. The uniform distribution and vertical fibre structure results in the same strength for each root, ensuring that roots are evenly distributed throughout the block.

Transplanting
Transplanting can be done on any loose substrate such as Grow-Cubes, or placed directly on a larger Grow-Block. These cubes are popular for hydroponic plant production and are indispensable for transplanting in this type of crop.

Main features Grodan Delta 4":

• Can be used purely in hydroponic cultivation
• Offers an optimal air/water ratio
• Allows rapid root penetration ensuring strong, vigorous plants
• Suitable for long-term use
• Unique hydrophilic fibre structure for water absorption
• Perfect distribution of water and nutrients
• Ideal for cultivation in pot plants

Cube dimensions: 7.5x7.5x6.5h cm
Hole size: 4x3.5h cm

Quantity: box of 384pcs

Grodan Delta 4" accessories

To prevent the formation of annoying algae on the surface of the growing substrate, you can cover the cubes with Cupecap covers for Grodan.