Grodan Pro A-OK 50/40 6/15, 2"x2", case of 1,500 environmental-controllers faster germination and enhanced plant

faster germination and enhanced plant growth for exceptional gardening success

Easily control the ultimate pressure of this dual-stage rotary vane vacuum pump thanks to its adjustable gas ballast

The louvered top effectively dissipates heat while operating DE bulbs at ideal temperatures for maximum light output and lamp life

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

and stems to get their start

Grodan Pro A-OK 50/40 6/15, 2"x2", case of 1,500 environmental-controllers faster germination and enhanced plantGrodan 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