Grodan Gro-Block Improved Mini-Block, 1.5" - Case of 2250 Select Rockwool Type:GR6.5 Small w/ Hole, Unwrapped, 4" x 4" x 2.5" - Case of 216 Using FloraFlex Bubbler Flow Inserts

Using FloraFlex Bubbler Flow Inserts (Found in the drop down menu at the top of the page above the "Add to Cart" button)

Normal pump rotation is CW

Hygroben is a microbial root inoculant composed of 5 different bacillus species that are shown to be physiologically compatible with each other and work together to enhance yield

3" x 13" Weight 10

No known cross-resistance to key commercial insecticide classes

Grodan Gro-Block Improved Mini-Block, 1.5" - Case of 2250 Select Rockwool Type:GR6.5 Small w/ Hole, Unwrapped, 4" x 4" x 2.5" - Case of 216 Using FloraFlex Bubbler Flow InsertsNew 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. A core component of the "Precision Growing" philosophy, Grodan Gro Blocks Improved with Advanced Wetting Technology allow you to cultivate more uniform and high quality crops while using less water