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The GAF Master Flow Aluminum Square-Top Round Throat Roof Louver Vent is our most versatile utility vent. It is recommended for kitchen duct outlets and bathroom fan exhausts, as well as attic ventilation. It has a full 50 sq. in. of net free ventilating area (NFA) per vent. Color: Mill.

Active Ventilation Products Round Back vent product line is excellent at venting attic spaces for shingled sloped roofs. The Round Back vent is made of rust free aluminum with an 8 in. Dia opening, inner vertical cylinder wildlife guard and 13 in. x 13 in. square flange. It has a manufactured one piece spun round aluminum vent cap that prevents rain and snow from entering the vent. Its low profile design looks pleasing on shingled roofs. Model RBSF-8-BL is powder coated with an electrostatic charge in black finish. The powder coating finish adheres extremely well and is more difficult to remove than wet paint which adds to the vents durability and long lasting clean appearance.

Roof Louvers are a type of attic exhaust vent that make up half of a balanced attic ventilation system for each roof. Intake vents make up the other half of the system. Together they help remove any built-up heat and moisture inside the attic for year-round ventilation. Color: Black. Material: Aluminum.

The GAF Master Flow Aluminum Square-Top Round Throat Roof Louver Vent is our most versatile utility vent. It is recommended for kitchen duct outlets and bathroom fan exhausts, as well as attic ventilation. It has a full 50 sq. in. of net free ventilating area (NFA) per vent. Color: Black.

The GAF Master Flow Aluminum Square-Top Round Throat Roof Louver Vent is our most versatile utility vent. It is recommended for kitchen duct outlets and bathroom fan exhausts, as well as attic ventilation. It has a full 50 sq. in. of net free ventilating area (NFA) per vent. Color: Brown.

The GAF Master Flow Aluminum Square-Top Round Throat Roof Louver Vent is our most versatile utility vent. It is recommended for kitchen duct outlets and bathroom fan exhausts, as well as attic ventilation. It has a full 50 sq. in. of net free ventilating area (NFA) per vent. Color: Weathered Wood.

The GAF Master Flow Resin Square-Top Roof Vent is designed for attic ventilation. The fully enclosed hood deters rodent and insect infiltration and leaf and pine needle clogging. The resin square-top roof louver is an excellent choice against weather infiltration. Each vent offers a full 60 sq. in. of net free ventilating area (NFA). Color: Black.

The GAF Master Flow Resin Square-Top Roof Vent is designed for attic ventilation. The fully enclosed hood deters rodent and insect infiltration and leaf and pine needle clogging. The resin square-top roof louver is an excellent choice against weather infiltration. Each vent offers a full 60 sq. in. of Net Free Ventilating Area (NFA). Color: Brown/Tan.

The GAF Master Flow Resin Square-Top Roof Vent is designed for attic ventilation. The fully enclosed hood deters rodent and insect infiltration and leaf and pine needle clogging. The resin square-top roof louver is an excellent choice against weather infiltration. Each vent offers a full 60 sq. in. of net free ventilating area (NFA). Color: Gray.

The GAF Master Flow Resin Square-Top Roof Vent is designed for attic ventilation. The fully enclosed hood deters rodent and insect infiltration and leaf and pine needle clogging. The resin square-top roof louver is an excellent choice against weather infiltration. Each vent offers a full 60 sq. in. of Net Free Ventilating Area (NFA). Color: Weatherwood.