Grodan Pro Delta 4 Block, 3" x 3" x 2.5" with hole, case of 384, Commercial Paleo Bloom Pound for pound

Pound for pound

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

Spray the tops and bottoms of the plants for best effect

Dissipate heat with fan powered cooling

Grodan Pro Delta 4 Block, 3" x 3" x 2.5" with hole, case of 384, Commercial Paleo Bloom Pound for poundGrodan 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