Grodan Gro-Block Improved GR10 Large with Hole, 4" x 4" x 4" - Case of 144 Grow Lights return to system

return to system

A unique pressure differential mechanism regulates flow and provides self-cleaning action

or no cord

Resinator is a blend of highest quality soluble potash

Grodan Gro-Block Improved GR10 Large with Hole, 4" x 4" x 4" - Case of 144 Grow Lights return to systemNew 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