Grodan Pro Delta 6.5 Block, 4" x 4" x 2.5", case of 216, Commercial reflective-and-greenhouse-films even under lights

even under lights

Pure results

200K blue spectrum for vegetative stage

500K 47″ x 12″ x 2½” 12 lbs 48½” x 16” x 4” 14 lbs 1

Grodan Pro Delta 6.5 Block, 4" x 4" x 2.5", case of 216, Commercial reflective-and-greenhouse-films even under lightsGrodan 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