Replacement and upgrade caps for 4-inch neck King Keg and similar large-neck home brew pressure barrels. Choose the cap type that suits your preferred CO2 system.
Cap Options
- 4" King Keg Caps with Hole — plain cap with hole for use with your own valve or bung. SKU 7142.
- 4" King Keg Caps with S30 Valve — fitted with a standard S30 valve for use with 8g CO2 bulb holders. SKU 7144.
- 4" King Keg Caps with Pin Valve — fitted with a pin valve for use with 8g CO2 bulbs and compatible bulb holders. SKU 7145.
- 4" Caps Spanner (Plastic) — plastic spanner for removing and fitting 4" caps. SKU 7152.
These caps fit 4-inch neck King Keg pressure barrels. For 2-inch neck barrels, see our 2" Pressure Barrel Caps.
Also see our King Keg Pressure Barrel, CO2 Injector System, and all home brew equipment at BrewCo.