In the embodiment of the present invention illustrated in FIGS 1 and 2, the reinforcing agent 16 is an O ring placed between {HEAD ~ the barbs} 12 of {TAIL ~ the connector} 10 
of
In the embodiment of the present invention illustrated in FIGS 1 and 2 , the reinforcing agent 16 is an O ring placed between { HEAD ~ the barbs } 12 of { TAIL ~ the connector } 10
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 OTH REL TAIL TAIL TAIL TAIL TAIL TAIL OTH