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- Features galvanized steel with single-blade damper, which closes off tightly against gasket for minimal leakage
- Designated as power closed/spring return open damper for use with Honeywell Zoning Systems
- Can be field-converted when used as an independent zone or for fresh air intake
- Rated to operate up to 1-inch wc
- Available in 5- to 10-inch, 12-, 14-, 16-, and 18-inch diameter sizes
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