Grodan ParGro Jumbo 6 inch x 6 inch x 4 inch w/ Hole Cases and Singles:Single Be sure to install the

Be sure to install the Black Hatch with the silver (reflective) side on the inside of your grow area

Increased resilience against harsh conditions like drought and salinity

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

4 integrated outlets: Any temperature or humidity trip fires all four outlets

500 Packets Per Master Case: Volume for a packaging line rather than a retail shelf or a single humidor

Grodan ParGro Jumbo 6 inch x 6 inch x 4 inch w/ Hole Cases and Singles:Single Be sure to install theGrodan 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