
Looking at other reviews I was a little doubtful that this would work in my fan unit. There were some minor differences in measurements, e.g. B. People said the unit was 9 inches by 9 inches. Well, it's not exactly 9 inches either way. These are approximate measurements only. The picture shows the box in my ceiling with the original device removed and shows the model numbers. I thought it might help others who, like me, were unsure.

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