by being bonded to the duct 110 of the present invention the groove 112 can be elongated to accommodate more than one o ring 114 should several be necessary the present invention contemplates optimally needing only about 6 8 squeeze particularly when using the rishon u00ae duct material from rcf technologies inc to form a suitable seal in comparison to existing sealing apparatus which require some 18 20 squeeze should the tubes 4 6 be subject to stress which attempts to pull them apart the beads 8 10 are abutted by the sealing portions 34 48 of the duct 14 and are prevented from being pulled apart similarly the seal between the duct 14 and tubes 4 6 is maintained since the duct 14 has an inherent amount of flexion should either or both of the tubes 4 6 be turned twisted bent vibrated pulled or the like the duct 14 can accommodate such movement while maintaining the seal the split ring 22 reduces the possibility of counterclockwise rotation of the compression ring during stress the split ring notch 70 mates with the lip 74 of the compression ring to form a tight fit the end cap assembly 26 eliminates.