{HEAD ~ A sleeve assembly} for receiving and protecting {TAIL ~ elongated items} within a duct is disclosed 
for protecting
{ HEAD ~ A sleeve assembly } for receiving and protecting { TAIL ~ elongated items } within a duct is disclosed
HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL OTH OTH REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH