{HEAD ~ A swivel housing} is coupled to the tubing reel in {TAIL ~ a bearing relationship} and includes an inlet port for receiving an end of the tubing and an outlet port for coupling to a nasal cannula 
is coupled in
{ HEAD ~ A swivel housing } is coupled to the tubing reel in { TAIL ~ a bearing relationship } and includes an inlet port for receiving an end of the tubing and an outlet port for coupling to a nasal cannula
HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL REL OTH OTH OTH OTH REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH