Standard 2" cap O-ring seal to fit Balliihoo Pressure Barrels & all other barrels with 2" openings. (Not suitable for King Keg).
Replacement O Ring Seal For Hambleton Bard 4 Inch Barrel Cap - Homebrew Keg
2" O Ring Seal For Barrel Cap Fits Sandard Homebrew Pressure Barrels & Beer Keg
Replacement Square Section O Ring Seal For 4" Pressure Barrel Cap - Homebrew Keg
O-rings Cornelius / Corny Keg Replacement O-ring Seal Kit. Home Brewing
3 x Thick Replacement O-ring Seal Kits For Cornelius / Corny Kegs. Home Brewing
3 x High Quality Cornelius / Corny Keg Replacement O-ring Seal Kit. Home brew