A housing for {TAIL ~ the bath fan} can be attached to joists in the ceiling by {HEAD ~ a telescoping brackets} 
A housing for { TAIL ~ the bath fan } can be attached to joists in the ceiling by { HEAD ~ a telescoping brackets }
OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD