These adapters are a great alternative to a jockey box for 1-2 kegs, but you need to drop the pressure down to 1-2 psi. Over days the CO2 will start to come out of solution in the beer, and you'll notice a decrease in carbonation. As Denny stated, you'll need something to drop the pressure between the keg and the faucet if you're planning on using this longterm, either tubing or some other device.