Description
Grodan Rockwool is a mineral-based product perfect for hydroponic growing applications. Made from molten basalt and limestone rock, it is compressed into cubes, blocks or slabs. Rockwool 40/40 growing blocks are individually wrapped and feature grooves on the base for good drainage. They can be used for direct plant sowing or to receive rooted propagation cubes.
Grodan Delta guarantees an optimum balance of air and water, ensuring that the roots receive the necessary air and water for growth. Whether transplanting or planting small plants, Rockwool 40/40 growing blocks are the perfect size and feature for successful growth. Grodan Rockwool is a reliable and efficient hydroponic growing product that you can trust to give optimal plant growth.
Each MM 40/40 cube is 1.5 x 1.5 x 1.5 inches in size (3.8 x 3.8 x 3.8cm)