Grodan Gro-Block Improved GR10 Large with Hole, 4" x 4" x 4" - Pallet of 1584 Select Rockwool Type:GR10 w/ Hole 4" x 4" x 4" - Pallet of 1,584 Full-Spectrum

Full-Spectrum

By adding an amino acid source of nitrogen

Indole-3-butyric acid

High-quality drip stakes that prevent clogging and build-up for use with top drip watering systems

Grodan Gro-Block Improved GR10 Large with Hole, 4" x 4" x 4" - Pallet of 1584 Select Rockwool Type:GR10 w/ Hole 4" x 4" x 4" - Pallet of 1,584 Full-SpectrumNew 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. A core component of the "Precision Growing" philosophy, Grodan Gro Blocks Improved with Advanced Wetting Technology allow you to cultivate more uniform and high quality crops while using less water