The pump housing also includes a first module member portion adapted to seal with {TAIL ~ a second module member} so as to form {HEAD ~ a control module} 
The pump housing also includes a first module member portion adapted to seal with { TAIL ~ a second module member } so as to form { HEAD ~ a control module }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD