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