The Grodan Improved MM 40/40 6/15 Plugs are 1.5-inch by 1.5-inch by 1.5-inch stonewool Delta Starter Mini-Blocks that come in a configuration of 15 per strip and 3 strips per pack, shrink-wrapped (Sleeve = 45 Blocks). The Mini-Blocks are meticulously designed for uniform and high-quality plant growth, offering consistent density, flexibility, and sturdiness.
Grodan Delta forms the foundation for the uniform and precisely controllable propagation of plants. These blocks guarantee an optimum air/water balance, thanks to the variation in small and large pores throughout each block. This ensures that plant roots are always supplied with sufficient air and water.
The efficient pattern of the pores in the Grodan Improved MM 40/40 6/15 Plugs ensures a uniform distribution of water and nutrients, offering excellent control over the nutrient solution and pH, promoting a robust root system during propagation.
The blocks are individually wrapped in white plastic to minimize algae growth and can be used with or without removing the wrapping. They can be transplanted into any loose media such as Growcubes or coconut fiber, or set on top of a larger Gro-block. Packaged in easy tear-away strips, the plugs come with clear instructions for use.
