Emerald Harvest Cali Pro Bloom A is a high-quality base nutrient designed to support plants during their flowering phase. This 2.5 US gallon (9.46 L) container, available in a case of two, provides an ample supply for large-scale and commercial growers who require consistent nutrient delivery. As part of a two-part system, Cali Pro Bloom A works in combination with Cali Pro Bloom B to... https://www.hydroponicstown.com/cali-pro-bloom-a-2-5-us-gal-9-46-l