{HEAD ~ a housing} having a housing cavity and {TAIL ~ a top plate} and bottom plate enclosing said cavity, said housing having a first and second inlet port and an outlet port from said cavity 
having
{ HEAD ~ a housing } having a housing cavity and { TAIL ~ a top plate } and bottom plate enclosing said cavity , said housing having a first and second inlet port and an outlet port from said cavity
HEAD HEAD HEAD HEAD HEAD HEAD REL OTH OTH OTH OTH 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