Cultilene 4x4x4 Rockwool Block (144 pieces per case) spl_dlw and then plant seeds using

and then plant seeds using the included seed balls

Use it alone in hydroponics or try blending it with coir or your favorite planting mix for superior aeration

Factory Calibrated: The PH-80 meter is factory calibration to pH 7

larvasides

These thick

Cultilene 4x4x4 Rockwool Block (144 pieces per case) spl_dlw and then plant seeds usingCultilene Blocks have an optimum air water ratio for healthy root growth and allow for great continued rooting thanks to the extremely even distribution of water and EC. These blocks have an excellent water absorption and (re)saturation rate and feature the exclusive Plant Comfort fibre structure which has a lower density of resistance during rooting with no loss of firmness. All blocks except the 3x3x3 also have the Optiplus feature, which is a