Cultilene (Cultiwool) 4x4x4 Rockwool Block (144 pieces per case) Air Purification Outlet and inlets are 1

Outlet and inlets are 1 in NPT

It works with your existing nutrient program and growing medium

The choice of professional growers

ENERGY is a product derived from traditional and organic ingredients

Cultilene (Cultiwool) 4x4x4 Rockwool Block (144 pieces per case) Air Purification Outlet and inlets are 1Cultilene 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