Speidel fermenters are safer than glass carboys, easier to keep clean that plastic carboys, and easier to transfer contents that either.These fermenters are made out of HDPE and are extremely durable.Key Features: 7.9 gallons, 30 liters Heavy duty HDPE construction is durable and resists oxygen transfer. Built-in handles make these tanks easy to move, even when full. Large lid opening makes them easy to clean by hand. All ports seal with gaskets and the vessel can be fully sealed for long-term storage. Includes a spigot and airlock. Approximate Dimensions: 13.5in Diameter x 18.5in Height (w/out airlock in place). Note:The maximum temperature that these plastic fermenters can handle is 140F.