I was hoping this would replace some of the oversized metal covers over the fan, but since there are only 2 connection points (instead of 4) it doesn't seal. IF it was metal or some strong composite material it might work better or be a little bigger than a round box. In my case, it was a small hole between the siding and the gasket, but water entered the electrical box. Unfortunately I can't find any other solution. Considering the cost, it's not worth the money. You may have to make your own wooden version, but it won't look as elegant. It's a pity to hope this works.
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