Cultilene 6x6x4 Block w/ Optidrain (64 pieces per case) timers-and-instruments Air root pruning is a

Air root pruning is a key component to a healthy fibrous root ball

Internal and external reflectors included

5% relative humidity non-adjustable deadband

Automatic Temperature Compensation (ATC)

one 8 oz BioRoot

Cultilene 6x6x4 Block w/ Optidrain (64 pieces per case) timers-and-instruments Air root pruning is aCultilene 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