{HEAD ~ Insert} 16 is shown as {TAIL ~ end caps} inserted in the open ends of channel 34 of housing 8 
is shown as
{ HEAD ~ Insert } 16 is shown as { TAIL ~ end caps } inserted in the open ends of channel 34 of housing 8
HEAD HEAD HEAD HEAD HEAD OTH REL REL REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH