![Master Flow R50A Roof Louver with Square Throat, 16-1/2 in L, 15 in W, Aluminum, Mill, Roof Installation [SKU: ORG6581615]](https://cdn11.bigcommerce.com/s-er447ou6zb/images/stencil/600x600/products/34385/33055/6581615__22466.1683068786.jpg?c=1 "Master Flow R50A Roof Louver with Square Throat, 16-1/2 in L, 15 in W, Aluminum, Mill, Roof Installation [SKU: ORG6581615]")
![Master Flow R50A Roof Louver with Square Throat, 16-1/2 in L, 15 in W, Aluminum, Mill, Roof Installation [SKU: ORG6581615]](https://cdn11.bigcommerce.com/s-er447ou6zb/images/stencil/1280x1280/products/34385/33055/6581615__22466.1683068786.jpg?c=1 "Master Flow R50A Roof Louver with Square Throat, 16-1/2 in L, 15 in W, Aluminum, Mill, Roof Installation [SKU: ORG6581615]")
Product Overview
Square-top metal utility vent, recommended for kitchen duct outlets and bathroom fan exhausts as well as ventilation, large capacity of full 50 sq-in of net-free ventilating area (NFA) per vent, versatile, available with square throat in heavy-duty aluminum, easy to install, pre-drilled nail holes with extra wide flashing area. CSA listed. [QTY/UOM: 1EA / 1EA] [PMS SKU: ] [Category: VENTILATION PRODUCTS/ROOF VENTILATORS;Shop All]
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![Master Flow SSB960A Roof Louver, 18 in L, 20-1/2 in W, Aluminum, Mill [SKU: ORG6247613]](https://cdn11.bigcommerce.com/s-er447ou6zb/images/stencil/500x659/products/34461/33131/6247613__02927.1683068829.jpg?c=1 "Master Flow SSB960A Roof Louver, 18 in L, 20-1/2 in W, Aluminum, Mill [SKU: ORG6247613]")
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![Master Flow SSB960AW Roof Louver, 18 in L, 20-1/2 in W, Aluminum, White [SKU: ORG6247654]](https://cdn11.bigcommerce.com/s-er447ou6zb/images/stencil/500x659/products/34439/33109/6247654__19020.1683068818.jpg?c=1 "Master Flow SSB960AW Roof Louver, 18 in L, 20-1/2 in W, Aluminum, White [SKU: ORG6247654]")