Grodan Gro-Block Improved GR10 Large with Hole, 4" x 4" x 4" (Case of 144) Gateway Supply CO2 Sensor Type: NDIR (Nondispersive

CO2 Sensor Type: NDIR (Nondispersive Infrared)

UPC Code: 816731014533

0 High Rise ID (Inner Dimension) Trays: These trays are your optimal choice for top-of-the-line

Package Dimensions:             160mm(L) x 86mm(W) x 86mm(H)

TrolMaster AS-5 Alarm Station – Audio/Visual Alert Module for Grow Room Controllers

Grodan Gro-Block Improved GR10 Large with Hole, 4" x 4" x 4" (Case of 144) Gateway Supply CO2 Sensor Type: NDIR (NondispersiveGrodan Gro Block Improved GR10 Large with Hole, 4" x 4" x 4" Case of 144 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