Include: Ball Lock Gas Disconnect MFL 1/4, Ball Lock Liquid Disconnect MFL 1/4 Material: Food Grade Plastic Material for Ball Lock Quick Disconnect Body and Stainless Steel Material for Flare Thread Part Easy Connect: the Ball Lock Disconnect MFL is nice for Quick changing Lines or adding other equipment without cutting the Beer Line or Gas Line Widely Use: the Ball Lock Gas Disconnect is usually connect Charger, and the Ball Lock Liquid Disconnect is usually Connect Beer Faucet Adapter; the most widely use is connect Swivel Nuts and then Connect Beer Gas Line