Grodan Improved Pro MM 40/40 6/15 Plugs, 1.5Inches x 1.5Inches x 1.5Inches, 2250 per box, Commercial (Pro) titan-controls-zephyr-1-day-night-temperature-controller Now comes in a bulk

Now comes in a bulk pack too

Keep away from children

Also includes optional plate to block air from one side

Quest 746 is the industry’s first 750 pint

CO2 is scientifically proven to improve the performance of plants

Grodan Improved Pro MM 40/40 6/15 Plugs, 1.5Inches x 1.5Inches x 1.5Inches, 2250 per box, Commercial (Pro) titan-controls-zephyr-1-day-night-temperature-controller Now comes in a bulkNew 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