The use of an oxygen system will greatly improve the quality of your fermentation. Oxygen systems help reduce lag time, allow for more active yeast during fermentation, and your fermentation time will last longer. These systems are almost a must with higher gravity beers. The better the fermentation, the better the beer. This regulator should be used with a disposable oxygen tank found at your local hardware store. Comes with a 1/4" barb for connecting 1/4" tubing.