Grodan Pro Delta 4 Block, 3" x 3" x 2.5" with hole, case of 384, Commercial Paleo Bloom Blend into native soils

Blend into native soils

and connections for external equipment such as dehumidifiers and air conditioning systems

bulb replacements and heat are the biggest problems indoor growers face

Highly visible large LCD display

Grodan Pro Delta 4 Block, 3" x 3" x 2.5" with hole, case of 384, Commercial Paleo Bloom Blend into native soilsGrodan Stonewool (rockwool) is made from molten rock spun into cotton candy like fibers and then compressed into cubes, blocks, or slabs. Where other rockwool brand manufacturers cut all sizes from one batch of wool, Grodan is unique by making different types of fibers. The purpose is to support the requirement of the plant in the different plant stages. Grodan has a tremendous capacity for absorbing nutrient solution while retaining plenty of oxygen