Grodan Gro-Block Improved GR6.5 Small with Hole, 4" x 4" x 2.5" (Case of 216) LUXX 200W BAR 208-277V Its active ingredient

Its active ingredient

Width: 36 Inches

Hydroponic applications: Use 1-5 ml per gallon of reservoir water

Fully Programmable Spectrum Control

kerosene and acids

Grodan Gro-Block Improved GR6.5 Small with Hole, 4" x 4" x 2.5" (Case of 216) LUXX 200W BAR 208-277V Its active ingredientGrodan Gro Block Improved GR6. 5 Small with Hole, 4" x 4" x 2. 5" Case of 216 New and improved stone wool substrate with advanced wetting technology from Grodan Introducing Grodan Gro Blocks Improved, a product specifically engineered to deliver real results for your crops, developed by plant scientists, researchers, and top growers. The uniform distribution of water and nutrients throughout the block allows for more efficient use of the entire