A gas tubing reel includes {TAIL ~ a housing} having {HEAD ~ a tubing reel} rotatably positioned therein for unwinding and retracting tubing 
A gas tubing reel includes { TAIL ~ a housing } having { HEAD ~ a tubing reel } rotatably positioned therein for unwinding and retracting tubing
OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH