★ The thread of Gas Post & Liquid Post: FPT 5/8";?fits all the A D S G Type Keg Coupler. ★ Can be easily attached to air and beer line fittings. ★ Help easily convert a sankey system to a ball lock system in seconds. ★ Our keg coupler adapter kit will be locked in place perfectly. ★ No more mess with the tubing connections.