Gas Manifold which can be used to connect two kegs to a single CO2 bottle.
Each outlet has a check valve and can be opened and closed individually. 

All connections have 1/4" MFL threads.

Made of aluminium, brass and stainless steel.
Drilled holes for wall mounting.

Please note that due to the check valve mechanism there is about a 0.1 bar (2 psi) pressure drop over the ball valves. You may have to compensate for this by setting the pressure on the regulator about 0.1 bar higher than the desired pressure in the keg.