Grodan Gro-Block Improved GR32 Hugo with Hole, 6" x 6" x 6" - Case of 64 Select Rockwool Type:GR10 Large w/ Hole, 4" x 4" x 4" - Case of 144 High Photon Efficacy

High Photon Efficacy

malt extract

Expand On Your Growing Needs With The Ultimate In Cultivation Control

They provide increased production

inert soil blend with a pH of 5

Grodan Gro-Block Improved GR32 Hugo with Hole, 6" x 6" x 6" - Case of 64 Select Rockwool Type:GR10 Large w/ Hole, 4" x 4" x 4" - Case of 144 High Photon EfficacyNew 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