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