{HEAD ~ The polygonal shape} of {TAIL ~ the scrubber chambers} contributes to a greatly improved washing and disintegrating action on the material being treated 
{ HEAD ~ The polygonal shape } of { TAIL ~ the scrubber chambers } contributes to a greatly improved washing and disintegrating action on the material being treated
HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH