Grodan Improved GR40 Uniblock 8" x 8" x 4" (Case of 36)

Grodan Improved GR40 Uniblock 8" x 8" x 4" (Case of 36)Grodan Improved Uniblock GR40, 8" x 8" x 4" Grodan partnered with the Wageningen University and Research facility in The Netherlands and top growers throughout North America to identify the optimal stone wool substrate and irrigation strategies for specialty crops. The result of months of scientific research and trials is Grodan Gro Blocks Improved with Grodans Advanced Wetting Agent. These leading edge blocks have the optimal fiber structure and

It reduces foul tastes & odors

which convert nitrogen gas in to usable nitrate

NOTE: Use only with ball-bearing inline/centrifugal fans

• Includes Perlite for Aeration and Drainage

there is no problem

Distribute the output of your air pump precisely with this individually controllable 6-outlet air manifold

Designed specifically to be used in soil container gardens

facilitating an enhanced uptake

Designed for use with Phantom PHOTOBIO LED fixture models CX

workshops and other areas that may need a heavy-duty floor fan

Coco-Wet is an organic wetting agent formulated to maximize product absorption and coverage on all plant surfaces

Power Si is proven to build stronger cell walls decreasing susceptibility to various diseases resulting in stronger plants and thicker stems