Grodan Gro Block Improved GR4 - 3' w/ hole (3x3x2.6) (Commercial case - no shrinkwrap) water storage & fertigation Quantanium tumblers assist in better

Quantanium tumblers assist in better trichome preservation resulting in a higher quality end-product with more natural aroma and flavors

Venting CO2 Generator Heat With Ducting

This organic additive works by increasing the permeability of plant membranes

Immersible >1M

because every pack stays sealed and inert until the moment it is torn open at fill

Grodan Gro Block Improved GR4 - 3' w/ hole (3x3x2.6) (Commercial case - no shrinkwrap) water storage & fertigation Quantanium tumblers assist in betterGrodan Gro Block Improved GR4 3' w hole (3x3x2. 6) (Commercial case no shrinkwrap) Introducing the newly improved Grodan Gro Block GR4 a revolutionary solution for modern growers. Our state of the art growing block is designed to deliver an unparalleled horticultural experience by focusing on the core factors that influence plant growth: water distribution and root development. New Density & Hydrophilic Technology: The Grodan Gro Block boasts a newly