Harrell's uses premium water soluble raw materials creating the highest quality finished products. Products go into solution quickly with no residues to clog nozzles. Custom formulations for individual growing operations allow precision nutritional applications. The batch manufacturing system which hand weighs each ingredient before processing provides a precise mix with maximum accuracy. Quality control is job one. Each batch of material is checked for solubility and chemical analysis to ensure the grower gets the right material.
Our VI prosubles are powered by high-quality European raw materials. Crystals are easily soluble with no messy dyes. We stock 20-20-20, 20-10-20, 21-7-7, 17-5-17 and custom formulationas are available.