This FermZilla Butterfly Valve Upgrade Collar is designed to upgrade Gen 3 Conical Fermenters by replacing the original 2" dump valve and harvest adapter with a full 3" tri-clover compatible setup. The larger valve opening improves flow and significantly reduces the risk of clogs caused by heavy trub or sediment buildup during fermentation.
It is also fully compatible with Gen 3.2 Conical Fermenters and can be used as either a direct replacement or a spare part.
