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Makeup air inlet

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ChrisJ
ChrisJ Member Posts: 16,809

This may be a stupid question but what do I use outside for an air inlet on a 6" pipe that's feeding make up air to an enclosure I'm exhausting 400 CFM from?

I know what to use as an exhaust damper but I've never seen anything as an inlet damper / screen.

Rain isn't a huge concern.

Single pipe 392sqft system with an EG-40 rated for 325sqft and it's silent and balanced at all times.

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