Each of the plurality of transducer ports can define {TAIL ~ an aperture} and a counter bore, wherein each transducer is positionable in {HEAD ~ an associated transducer port} with the flange of the header of the transducer being welded to the counter bore of the transducer port 
Each of the plurality of transducer ports can define { TAIL ~ an aperture } and a counter bore , wherein each transducer is positionable in { HEAD ~ an associated transducer port } with the flange of the header of the transducer being welded to the counter bore of the transducer port
OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD 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