Pull cords are located within {HEAD ~ each central space} for drawing {TAIL ~ the elongated items} through the sleeves once positioned within a duct 
for drawing
Pull cords are located within { HEAD ~ each central space } for drawing { TAIL ~ the elongated items } through the sleeves once positioned within a duct
OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH