Which vent do I need?


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Stupid question really, but I ve just bought a house with a bathroom window which contains what appears to be half of some sort of ventilator stuck in it. I ve done a bit of googling and it looks like it may be a vent-o-matic.


Now I want to replace the vent without breaking the window, but it s firmly stuck in there, and I cannot measure the exact aperture in order to ascertain which model I need to buy.

Can anyone tell me which model I need from the attached picture?

Sorry to post such a silly question.


Answer ( 1 )

  1. Please briefly explain why you feel this answer should be reported.


    Never a silly question at all. However, I really can’t tell from the picture. But why not just replace that with a ceiling exhaust fan. I think that will be a lot nicer.