{HEAD ~ The placement} of the mounting strips and {TAIL ~ tubes} in the housing can be selected as desired 
{ HEAD ~ The placement } of the mounting strips and { TAIL ~ tubes } in the housing can be selected as desired
HEAD HEAD HEAD HEAD HEAD HEAD REL OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH