Emerald Harvest Cali Pro Grow B, 15 US Gallons / 56.78 L is a premium liquid fertilizer designed for professional and home growers who want optimal plant nutrition. It comes in a 15 US gallon (56.78 L) container, making it ideal for large-scale cultivation. This nutrient solution is part of a two-part base nutrient system, working alongside Cali Pro Grow A to provide essential macronu... https://www.hydroponicstown.com/cali-pro-grow-b-15-us-gal-56-78-l