a cup shaped housing having {HEAD ~ an open mouth} and having {TAIL ~ an inlet} and an outlet formed therein 
a cup shaped housing having { HEAD ~ an open mouth } and having { TAIL ~ an inlet } and an outlet formed therein
OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH