Grodan Pro A-OK 50/40 6/15, 2"x2", case of 1,500 environmental-controllers Operating temperature ranges between 25°C

Operating temperature ranges between 25°C (77°F) to 30°C (86°F) above ambient

UV resistant and durable

000 Watt Cali Ballast 10¾” x 5½” x 2¾” 4

and lighting for up to four grow spaces with ease

faster germination and enhanced plant growth for exceptional gardening success

Grodan Pro A-OK 50/40 6/15, 2"x2", case of 1,500 environmental-controllers Operating temperature ranges between 25°CGrodan 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