These CO2 manifolds allow you to supply gas to multiple kegs with one regulator. They are constructed of aluminium, stainless and brass. The manifold has 1/4" barbed shut-off valves each with an integral check valve to prevent backflow of gas or liquid. This protects your regulator and also mitigates the risk of beer migrating from one keg to another. Gas lines should be attached with a suitable clamp. Screw holes allow for easy mounting inside your kegerator.