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Cultilene 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 fiber 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 unique design on the underside of the block allowing for excess water to drain away easily.
Rockwool or stonewool, also called mineral, rock, or slag wool is one of the most popular growing mediums in hydroponics operations due to its versatility and water retention characteristics. Grower's House carries grow blocks in a variety of sizes and shapes.Sold by the case. This media is inert and pathogen free.
|Name||Cultilene 4x4x4 Block w/ Optidrain (144 pieces per carton/case)|