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#4 perlite
Both high and low level limits are user-adjustable to meet local regulations for supplemental CO2 use indoors
Do not use with other oil based products
the manufacturer recommends using this product
Use it alone in hydroponics or try blending it with coir or your favorite planting mix for superior aeration
Cultilene 4x4x4 Rockwool Block (144 pieces per case) spl_dlw #4 perliteCultilene 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
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