Increase your capacity! This five gallon expansion kit makes the Big Mouth™ Modular Keg the most versatile in the world.

Attach this 5-gallon expansion sleeve to your  Big Mouth™ Modular 1 Gallon Keg when you’re ready for bigger brew days, and collapse back to 1 gallon for keeping it in your fridge or party-ready portability.

Required but not included: Big Mouth™ Modular 1 Gallon Keg

Kit Includes:

• Expansion Sleeve
• 1 V-Band Clamp
• Dip tube
• Silicone Center Gasket

Dimensions: W: 11" with V-band; H:15"