The apparatus includes {HEAD ~ a member} having a channel through which fluid flows and at least one opening of a predetermined diameter in communication with {TAIL ~ the channel} 
The apparatus includes { HEAD ~ a member } having a channel through which fluid flows and at least one opening of a predetermined diameter in communication with { TAIL ~ the channel }
OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL