An improved I shaped track provides free roller movement of {HEAD ~ the end portion} of the respective water carrying connector pipes which is connected to {TAIL ~ the sprinkler line} 
is connected to
An improved I shaped track provides free roller movement of { HEAD ~ the end portion } of the respective water carrying connector pipes which is connected to { TAIL ~ the sprinkler line }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH REL REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL