The inner sealing member is received within {HEAD ~ a space} between {TAIL ~ the webs} of the grommet 
between
The inner sealing member is received within { HEAD ~ a space } between { TAIL ~ the webs } of the grommet
OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH