Grodan Gro-Block Improved GR6.5 Small with Hole, Unwrapped, 4" x 4" x 2.5" - Case of 216 Storage Bags measurement comparison

measurement comparison

Scientific studies have shown that humic acid regulates the effects of stress in plants by blocking hormones from reaching stress receptors sites

Value 50 ppm 1

Blade material is Japanese surgical-grade stainless steel offering serious cutting capacity in a durable lightweight package

0 l/h) each at 14

Grodan Gro-Block Improved GR6.5 Small with Hole, Unwrapped, 4" x 4" x 2.5" - Case of 216 Storage Bags measurement comparisonNew 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