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Vent Caps

Circular Duct Backdraft Damper Product #: RSK4
4" x 3-1/4", 24 Gauge, H14 Aluminum, Round, Spring Loaded, Circular Duct Backdraft Damper Learn More
Circular Duct Backdraft Damper Product #: RSK6
6", 24 Gauge, G90 Galvanized Steel, Vertical Mount, Spring Loaded, Round, Circular Duct Backdraft Damper Learn More