For example, in {TAIL ~ this embodiment}, the installer can attach a coil restraint at the center of one of {HEAD ~ the walls} of the trough and install the rest of the coil restraints each butting up against a previously installed coil restraint  
For example , in { TAIL ~ this embodiment } , the installer can attach a coil restraint at the center of one of { HEAD ~ the walls } of the trough and install the rest of the coil restraints each butting up against a previously installed coil restraint
OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH