Grodan Gro-Block Improved GR7.5 Medium with Hole, 4" x 4" x 3" - Case of 192 1' x 8' Grow Trays & Flood Tables The high-pressure switch is factory

The high-pressure switch is factory set to maintain 580psi

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

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

Spacing Hanging Height PPFD (µmol) Uniformity 4' x 4' 2 Feet ~1000 >80% 4

Grodan Gro-Block Improved GR7.5 Medium with Hole, 4" x 4" x 3" - Case of 192 1' x 8' Grow Trays & Flood Tables The high-pressure switch is factoryNew 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