Grodan ParGro Jumbo 6 inch x 6 inch x 4 inch w/ Hole Cases and Singles:Single 1807-2130 CFM: 12-inch or 14-inch

1807-2130 CFM: 12-inch or 14-inch high-velocity airflow

Distinguishable from Classic Slabs: While Expert Slabs are tailored for hobbyists with their vertical fibers

ensuring optimal moisture levels for your plants

2 meter / 6

ETL-Rated + EZ Mount: Certified for continuous use with an included mount bracket

Grodan ParGro Jumbo 6 inch x 6 inch x 4 inch w/ Hole Cases and Singles:Single 1807-2130 CFM: 12-inch or 14-inchGrodan ParGro Jumbo 6 inch x 6 inch x 4 inch w Hole The Grodan ParGro Jumbo 6 inch x 6 inch x 4 inch w Hole is a game changer for hydroponic growers seeking superior moisture control and optimal root development. With its outstanding features, these rockwool blocks provide the perfect growing medium for your plants, ensuring healthy and vigorous growth. The Pargro line by Grodan has been specially modified to offer the driest value priced rockwool on