The upper end 42 is optionally secured to the open lower end 24 of {TAIL ~ the T} shaped {HEAD ~ two piece housing} 12 
The upper end 42 is optionally secured to the open lower end 24 of { TAIL ~ the T } shaped { HEAD ~ two piece housing } 12
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH