Stock up on the Viagrow 1 gal. Fabric Pots. Fabric aeration pots are durable enough to last for multiple seasons of gardening while creating an oxygen healthy root system for the plant. Designed to allow roots to breathe, these pots stand up well to heavy harvests and can be used for soil or hydroponic applications both indoors and outdoors. The aeration pots are made of 100% new polypropylene (PP) and are . Please note that our pots are measured in trade gallon. A trade gallon is a term used to denote the sizes of standard plant containers in horticultural Industries. A trade gallon is equal to approximately 0.71 U. S. liquid gallon. There are 5 fabric nursery pots included per shipment.