Grodan Gro-Block Improved GR22 Jumbo with Hole, 6" x 6" x 4" - Case of 64 Select Rockwool Type:GR10 w/ Hole 4" x 4" x 4" - Pallet of 1,584 25 feet of ducting gives

25 feet of ducting gives you the flexibility to customize the length of your ductwork to fit your application

CO2 consumption has slowed

doses may be increased 5 fold

Labelled for use on: Ornamentals grown in greenhouses

Grodan Gro-Block Improved GR22 Jumbo with Hole, 6" x 6" x 4" - Case of 64 Select Rockwool Type:GR10 w/ Hole 4" x 4" x 4" - Pallet of 1,584 25 feet of ducting givesNew 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