The scrubber sections are interchangeable and may be connected one to the other in {HEAD ~ any} of {TAIL ~ a variety} of combinations as may be dictated by the material being scrubbed 
of
The scrubber sections are interchangeable and may be connected one to the other in { HEAD ~ any } of { TAIL ~ a variety } of combinations as may be dictated by the material being scrubbed
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH