{HEAD ~ The reflector} is preferably for {TAIL ~ 7/8 inch diameter tubes} and has a film thickness of about 0.8 mils 
is preferably for
{ HEAD ~ The reflector } is preferably for { TAIL ~ 7/8 inch diameter tubes } and has a film thickness of about 0.8 mils
HEAD HEAD HEAD HEAD HEAD HEAD REL REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH