Grodan Gro-Block Improved GR22 Jumbo with Hole, 6" x 6" x 4" (Case of 64) lamps OASIS® AeroSelect™ PlugSheet engineered foam

OASIS® AeroSelect™ PlugSheet engineered foam substrate is ideal for hydroponic propagation and production of lettuces

the plant can focus its energy on flowering and essential oil production instead of on producing food

the sturdy sealing arm is mounted on a thick

extending the root system's reach and improving access to water and nutrients — particularly phosphorus

ensuring its proper functioning in heavy humidity without inhibiting its lifespan

Grodan Gro-Block Improved GR22 Jumbo with Hole, 6" x 6" x 4" (Case of 64) lamps OASIS® AeroSelect™ PlugSheet engineered foamGrodan Gro Block Improved GR22 Jumbo with Hole, 6" x 6" x 4" Case of 64 New and improved stone wool substrate with advanced wetting technology from Grodan Introducing Grodan Gro Blocks Improved, a product specifically engineered to deliver real results for your crops, developed by plant scientists, researchers, and top growers. The uniform distribution of water and nutrients throughout the block allows for more efficient use of the entire substrate