{HEAD ~ The plurality} of diagonally formed apertures function to allow {TAIL ~ air flow} throughout the T shaped two piece housing 
function to allow
{ HEAD ~ The plurality } of diagonally formed apertures function to allow { TAIL ~ air flow } throughout the T shaped two piece housing
HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH REL REL REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH