Grodan Gro-Block Improved GR7.5, 4" x 4" x 3" (Case of 192) featured Double ended metal halide lamps

Double ended metal halide lamps are not designed to be run for 24 hours a day

Blend 99 is lightly fertilized to support plants early on and allows for fertilization throughout the growing season as needed

commonly found behind popular AV electronics and game consoles

but for the cleanliness maintained during manufacturing

Grodan Gro-Block Improved GR7.5, 4" x 4" x 3" (Case of 192) featured Double ended metal halide lampsGrodan Gro Block Improved GR7. 5 Medium with Hole, 4" x 4" x 3" Case of 192 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