What volume measurement markings are visible in the Conical Fermenter? Kim June 17, 2020 16:10 Updated The measurements are in both Litres and US Gallons 15 L up to 25 L 4 US Gal up to 7 US Gal Related articles What is the maximum boil volume on the G30? What is the height from the bottom ferrule of the Conical Fermenter to the floor? Video - Quick Overview of the GF30 Features How does heating work in the Conical Fermenter? GF30 Dual Valve Liquid Inlet Sizes