Take the guesswork out of barrel security with our 2 3/16" Locking Grab Ring Bung. While traditional bungs can loosen during temperature fluctuations or transport, our locking mechanism creates a mechanical, expansion-tight seal that won't budge. Designed for high-value wine and spirit aging, this bung ensures that your barrel remains hermetically sealed even in the most demanding cellar environments.
Mechanical Expansion Seal: Engineered to expand within the bunghole for a permanent, failsafe grip that survives transport and rolling.
Wrench-Adjustable Tightening: Designed for use with a 13 mm (1/2") box end wrench or socket, allowing you to dial in the exact level of pressure needed for a custom seal.
Integrated Heavy-Duty Grab Ring: Despite its locking strength, the integrated pull ring allows for controlled removal once the mechanism is unlocked.
High-Purity Food-Grade Silicone: Crafted from premium clear silicone that is non-porous, BPA-free, and neutral—ensuring your whiskey or wine is protected from contaminants and off-flavors.
