These kegs are sold as is with a 7 day warranty, they have not been washed and may contain some residual syrup. They were pressure tested when they left America but have not been tested since so we cannot guarantee they will still hold pressure. Due to this we highly recommend purchasing a seal kit to go with the keg. These second hand ball lock kegs may or may not have ring-pull pressure relief. These kegs use pin lock disconnects (available separately). They are slightly larger in diameter (22.6cm) and slightly shorter (58cm) than regular Cornelius type ball lock kegs.