KegSwappa 20L kegs have a Type A commercial keg fitting, the same used on the 50L kegs that your local brewery distributes to bars and pubs. This makes them easy for the brewery to fill and clean but a little more complex for you the consumer as you need a special coupler to inject the gas and push out that delicious beer! Luckily we have you covered and can put together anything you want in terms of serving your beverage anywhere you like, from a home built kegerator in an old fridge to a backpack to take the whole thing to a festival or event!