Grodan Rockwool Delta 4G 42/40 Hole 75mm Block

Size: 1 ea
Sale price$1.00


Grodan Rockwool is a mineral wool made from molten basalt and limestone rock that is spun into cotton-candy like fibres and compressed into cubes, blocks or slabs. As a mineral-based product, Grodan is ideal for hydroponic growing applications.

DM 4G 42/40 growing blocks are a popular choice for small plants and transplanting. These blocks feature grooves on the base to promote good drainage and measure 3 x 3 x 2.5 inches (7.5 x 7.5 x 6cm approx.). They are individually wrapped for easy handling and can be used for direct plant sowing or to receive rooted propagation cubes such as the AO 36/40 plugs directly into the DM 4G 42/40 hole.

These blocks can also be placed on top of a Grodan Slab for larger growing volume. Grodan Delta guarantees an optimum balance of air and water, as the variation of small and large pores throughout the block ensures that the roots are always supplied with sufficient air and water.

If you're looking for a reliable and efficient hydroponic growing product, Grodan Rockwool is the ideal choice. Whether you're planting small plants or looking to transplant, DM 4G 42/40 growing blocks offer the ideal size and features for successful growth. With Grodan Delta, you can trust that your plants will receive the perfect balance of air and water for optimal growth.

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