Versatile and Durable Black Pot for Large-Scale Planting Viagrow 10-gallon black nursery pots are measured in trade gallons, a standard term in the horticultural industry. One trade gallon equals approximately 0.71 U.S. liquid gallons. These black pots are BPA-free, food safe, and designed to be affordable and durable. Ideal for various types of soil or hydroponic growing media, the round plastic nursery pots feature a raised rim design for easy handling and stacking when not in use. They can be reused indefinitely. Specifications: Specification Details Top Diameter 18 inches Bottom Diameter 13.5 inches Height 14.75 inches Material BPA-free plastic Measurement Trade gallon (approx.