{TAIL ~ End caps} are formed with tapered tangs which tightly fit into the central groove of the channel thereby securely fitting {HEAD ~ the end caps} to the opposite ends of the channel 
{ TAIL ~ End caps } are formed with tapered tangs which tightly fit into the central groove of the channel thereby securely fitting { HEAD ~ the end caps } to the opposite ends of the channel
TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH