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Fantech RSK4 Spring Loaded Backdraft Damper for 4" Duct


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Product
Our#:112094
Mfg:Fantech
Mfg#:RSK4
Availability
In Stock
Price: $13.99
Suggested: $21.00
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Gravity backdraft damper with galvanized steel collar and lightweight aluminum damper blades. Spring loaded for assistance in gravity closure. For optimum performance, damper should be installed in a vertical orientation. For dampers installed in a horizontal position, the hinge should be vertical

Fits 4" Round Duct

A=4
B=3 1/4"

duct connections are 1/8" smaller than duct size