Master Flow Fan Shutter, Automatic, 35-3/4 in Length x 30-1/4 in Width Overall, 33-3/4 in Length x 28-1/4 in Width Opening, Aluminum, Enamel, White
Injection molded frame with smooth aluminum louvers that automatically open when fan turns on, and close when fan turns off to keep out air, insects, and dust
Injection molded frame with smooth aluminum louvers that automatically open when fan turns on, and close when fan turns off to keep out air, insects, and dust
Balanced shutters for complete automatic service-free operation
Master Flow Fan Shutter, Automatic, 35-3/4 in Length x 30-1/4 in Width Overall, 33-3/4 in Length x 28-1/4 in Width Opening, Aluminum, Enamel, White
Injection molded frame with smooth aluminum louvers that automatically open when fan turns on, and close when fan turns off to keep out air, insects, and dust
Injection molded frame with smooth aluminum louvers that automatically open when fan turns on, and close when fan turns off to keep out air, insects, and dust
Balanced shutters for complete automatic service-free operation
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Master Flow Fan Shutter, Automatic, 35-3/4 in Length x 30-1/4 in Width Overall, 33-3/4 in Length x 28-1/4 in Width Opening, Aluminum, Enamel, White
Injection molded frame with smooth aluminum louvers that automatically open when fan turns on, and close when fan turns off to keep out air, insects, and dust
Injection molded frame with smooth aluminum louvers that automatically open when fan turns on, and close when fan turns off to keep out air, insects, and dust
Balanced shutters for complete automatic service-free operation
