A plurality of support members are attached to {TAIL ~ the housing} and supportingly position the sealing ring radially within {HEAD ~ the housing} 
A plurality of support members are attached to { TAIL ~ the housing } and supportingly position the sealing ring radially within { HEAD ~ the housing }
OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD