This Kegland ball lock threaded connector features a one way check valve, to allow gas into a keg, while preventing beer from seeping out. These release pressure at 3psi. For the gas side (usually marked IN) of a ball-lock equipped keg. This fitting is threaded, and fits our D03 and D21 Gas Connectors, as well as our D66 barbed adapter. 3" tall.
We do not recommend disassembling this, as it has many small parts that are difficult to reassemble.