https://www.acdirect.com/manual-air-damper-large-mcdaniel-metals
Manual Air Damper Large McDaniel Metals (DDN25FDPGCHML)
Description: (1) Manual Air Damper Large McDaniel Metals Model #: DDN25FDPGCHML Dimensions: 22-3/5" W x 19-3/5" D x 10-3/10" H
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