Grodan Improved Gro-Block GR4 Strip 3" x 3" x 2.6", with Hole | Case of 48 Deep Water Culture | DWC This LED grow system uses

This LED grow system uses the latest Samsung LM301H diodes to efficiently produce full-spectrum lighting fit for use during the germination

Ideal for users that do not calibrate frequently

Ext + Filter + Light Baffle :

Use after the vegetative stage or transition period when plants are ready for a stronger phosphorus and potassium bloom formula

Grodan Improved Gro-Block GR4 Strip 3" x 3" x 2.6", with Hole | Case of 48 Deep Water Culture | DWC This LED grow system usesGrodan Improved Gro Block GR4 Strip 3" x 3" x 2. 6", with Hole Grodan's Improved Gro Blocks utilize improved hydrophilic technology and density for better water distribution and root development. Non Shrink Wrapped. Available with pre cut holes for easy planting. Block Size: 3in x 3in x 2. 6in Strip Size: 24" x 3in x 2. 6in. Blocks Strip: 8