5 inch fan is too big to fit in the pipe of vent. the fan picture i have shared above is approx 2 inch in diameter. what i did that i cut the pipe from middle and inserted the fan. but that was not good because the fan makes noise at high speed and the increase of air was not much. so took them out.
if u can find, change the blower motor of mehran and get some mini pajeor motor which is bit high speed than the mehran.
pipes ki jagha hotee hai. Ap kis pipe ki baat ker rahey ho?
