Grodan Gro-Block Improved GR6.5 Small with Hole, 4" x 4" x 2.5" - PALLET OF 2448 Reservoirs Upgraded Shaft Seals and O

Upgraded Shaft Seals and O Rings

3-in-1 formula: insect

Kings Mix by Royal Gold

The two-part powder maintains a consistent balance as a stock concentrate

Ideal for hydroponic

Grodan Gro-Block Improved GR6.5 Small with Hole, 4" x 4" x 2.5" - PALLET OF 2448 Reservoirs Upgraded Shaft Seals and ONew 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