One wall 74 of {TAIL ~ the manifold} 46 includes a plurality of holes that place {HEAD ~ the downstream volume} 68 in fluid communication with the tube set 48 
One wall 74 of { TAIL ~ the manifold } 46 includes a plurality of holes that place { HEAD ~ the downstream volume } 68 in fluid communication with the tube set 48
OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH