Grodan Improved 4 Block, 3Inches x 3Inches x 2.5Inches with hole, shrink wrapped, on strip, case of 384 fast-fit-trellis-support-system General Hydroponics pH Control Kit

General Hydroponics pH Control Kit contains 8 oz pH UP

Down To Earthâ„¢ Kelp Meal is pure ascophyllum nodosum seaweed from the clean

a built-in self calibration function and an integrated photocell that enables operation in daytime hours only

General Hydroponics ProRelease Field Formula 20-7-20 is a blend of coated and uncoated granulated fertilizers designed for high value field grown crops like hemp and other aromatherapeutic herbs

Grodan Improved 4 Block, 3Inches x 3Inches x 2.5Inches with hole, shrink wrapped, on strip, case of 384 fast-fit-trellis-support-system General Hydroponics pH Control KitNew 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