Grodan Gro Block Improved GR4 Small 3" No Hole 3" x 3" x 2.6" Strip Air Purification Under the surface Coir Crunch

Under the surface Coir Crunch stays damp and loose

• Can run efficiently on generators without flickering

Telescoping handle extends 30-inches to 42-inches (597mm to 909mm)

galvanized steel meshing

Grodan Gro Block Improved GR4 Small 3" No Hole 3" x 3" x 2.6" Strip Air Purification Under the surface Coir CrunchNew Grodan Improved! Improved product at current pricing. New density + new hydrophilic technology = better water distribution and root development. The uniform distribution of water and nutrients throughout the block allows for more efficient use of the entire substrate volume Full saturation of the blocks with no dry spots and improved EC control with less water is achieved in the rootzone due to the uniform, optimized wool resulting in a