Grodan-Delta Block Options:Delta 8 Block, 4"x4"x3", with hole, case of 180 5-ounce case contains 12: 5

5-ounce case contains 12: 5 ounce bottles

Big Rootz devotees won’t grow with anything else

Comes in a box of loose mini-cubes

premium compressed coir granules are formulated for growers

Grodan-Delta Block Options:Delta 8 Block, 4"x4"x3", with hole, case of 180 5-ounce case contains 12: 5Grodan 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