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- Honeywell Modulating Automatic Round Dampers (MARD)
Honeywell Modulating Automatic Round Dampers (MARD)
Honeywell's Modulating Automatic Round Damper is a round damper with a 24-Vac, floating-control type modulating motor for bypass and zone damper control. It uses a 90 second open to closed motor and is available in a wide variety of sizes.
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