The ability of the user of the scrubber to change scrubber sections to fit {HEAD ~ the requirements} of {TAIL ~ the material} being treated greatly adds to the efficiency of the overall device 
The ability of the user of the scrubber to change scrubber sections to fit { HEAD ~ the requirements } of { TAIL ~ the material } being treated greatly adds to the efficiency of the overall device
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH