Lt will fit both the Top Tap and Bottom Tap versions.
Homebrew Pressure Barrel Replacement 4" O Ring for King Keg Cap - Spare Seal x 5
Replacement Barrel 4" O'ring for King Keg - 2+ For 5% & 3+ for 10% Discount
King Keg Homebrew Beer Barrel Pressure Gauge/Adaptor Assembly 0-15PSI (No.1/DIY)
O-Ring for 4" Cap - To Fit King Keg Barrel Cap & Fermenter Cap - Black
Replacement O Ring Seal For 2" Barrel Cap - Fits Homebrew Pressure Barrels & Keg
Replacement Square Section O Ring Seal For 4" Pressure Barrel Cap - Homebrew Keg