Grodan ParGro Jumbo 6 inch x 6 inch x 4 inch w/ Hole Cases and Singles:Single We do not ship solvents

We do not ship solvents to Hawaii

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

Detailed step-by-step Procedure to perform successful tissue culture

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

Grodan ParGro Jumbo 6 inch x 6 inch x 4 inch w/ Hole Cases and Singles:Single We do not ship solventsGrodan 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