The gas economizer 2, wherein {HEAD ~ one end} of a tube is connected to {TAIL ~ the upper shell} in register with the opening in the upper shell and the other end of the tube is adapted to be operatively coupled to an intake manifold of an internal combustion engine 
is connected to
The gas economizer 2 , wherein { HEAD ~ one end } of a tube is connected to { TAIL ~ the upper shell } in register with the opening in the upper shell and the other end of the tube is adapted to be operatively coupled to an intake manifold of an internal combustion engine
OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH REL REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH