Grodan Gro-Block Improved GR7.5 Medium with Hole, 4" x 4" x 3" - Case of 192 1' x 8' Grow Trays & Flood Tables Converts organic matter into humus

Converts organic matter into humus

The all new Ai Glacier 21 Cu Ft -86°C Ultra-Low Temperature chest freezer is perfect for extra-large storage of samples and products

Fiberlock's IAQ Advanced Peroxide Cleaner is step one in Fiberlock's "Clean

Integrated photocell allows the Atlas 7 to only enrich with CO2 in daylight periods when your plants use it

Grodan Gro-Block Improved GR7.5 Medium with Hole, 4" x 4" x 3" - Case of 192 1' x 8' Grow Trays & Flood Tables Converts organic matter into humusNew 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