Grodan Gro Block Improved GR4 Small 3" No Hole 3" x 3" x 2.6" Strip Reflectors & Grow Lights Used in conjunction with Humboldt

Used in conjunction with Humboldt Nutrients powerful additives we assure that your yields and quality will increase so dramatically

Durable 20 gauge powder-coated steel enclosure

TSL Horti Tech and Grower’s Choice have joined forces with their

industrial grade units capable of pulling 190 pints per day in optimum environments (see specifications)

Duct Size: 6” | Dimensions: 7

Grodan Gro Block Improved GR4 Small 3" No Hole 3" x 3" x 2.6" Strip Reflectors & Grow Lights Used in conjunction with HumboldtNew Grodan Improved! Improved product at current pricing. New density + new hydrophilic technology = better water distribution and root development. The uniform distribution of water and nutrients throughout the block allows for more efficient use of the entire substrate volume Full saturation of the blocks with no dry spots and improved EC control with less water is achieved in the rootzone due to the uniform, optimized wool resulting in a