Spring loaded backdraft damper
Neoprene damper seal minimizes leakage
Requires from 0.04 to 0.08 inches wg pressure to open
Simple installation in any position - entire assembly inserts into duct
Gauge: 20
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Spring loaded backdraft damper
Neoprene damper seal minimizes leakage
Requires from 0.04 to 0.08 inches wg pressure to open
Simple installation in any position - entire assembly inserts into duct
Gauge: 20