Grodan Classic 30/75 Slab (wet), 12" x 3", case of 8 Promote Perfect for growing salads and

Perfect for growing salads and herbs or for early season seed starting

Foams less than regular formula and tweaked ever so slightly to behave more appropriately for the hydroponics reservoir environment

and has been celebrated for its natural fertilizing properties for centuries

in a footprint no bigger than a toaster

• Suitable for airstream temperatures up to 140°F (60°C)

Grodan Classic 30/75 Slab (wet), 12" x 3", case of 8 Promote Perfect for growing salads andGrodan 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