This 10-gallon Compost Tea Brewer will brew you up a batch of microbial compost tea within a 24-hour period. This compost tea brewer features a membrane disc that expands under high-pressure air, opening more than 4000 one-millimeter perforations and producing fine bubbles. These bubbles assure optimal oxygen levels are produced and maintained through the brewing process. These high-quality compost tea brewers are great for homeowners, professional operations and research institutions.