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