4” x 4” x 4” Cultilene Rockwool Cubes (144pk)

Encourage the growth of healthier plants and roots with the cultilene rockwool cubes. With the natural ability of the rock fiber to withhold air and water in proportion. Also, the rock creates very little resistance, which encourages faster rooting and a firm root structure. The rockwool cubes measure 4” x 4” x 4”, and the grooves are cross-shaped, which makes excess water runoff while maintaining aeration and stimulation of root growth. Faster Initial Rooting: The structure of the rockwool supports an Opto drain design which is cross-shaped and allows excess water to run off, saving the plants from damage. Air to Water Ratio: Rockwool cubes help maintain a balance between air and water, so plants get sufficient nourishment. Stronger Roots: The tight fiber structure of the cultilene rockwool cube allows less resistance, which helps produce healthier and stronger roots. Trusted Name: The rockwool cube is the trusted name of some of the world's best and trusted industrial pro