Q: What is the difference between Stainless Steel Gas Ball Lock Barbed Disconnect (Item 91-4297) and Stainless Steel Liquid Ball Lock Barbed Disconnect (Item 91-4298)?
A: ONe is set up to accommodate the gas side post of the keg, the other on the liquid side. The post diameter does vary slightly on each side to prevent the incorrect disconnect being attached by accident
Q: What are the measurements? Thanks
A: The height is 2.25" and the length on the top is 1.5"
Q: Are these connections single-shutoff style, e.g. do they stop the flow of gas when not connected to a gas post?
A: Yes, The flow of gas would be closed off once the connection was disengaged from the post on the keg.
Q: Does this disconnect have a check valve to prevent backflow into gas line?
A: There is no check valve on this disconnect