GAF Master Flow Roof Louver, Slant Back, Super Low Profile, Series: IR61, 37 sq-in Net Free Area, 11-3/4 X 9-3/4 in Vent Hole, High Impact Resin, Brown, 4-1/4 in Overall Length, 18-1/2 X 17-1/2 in Flashing

Duraflo Roof Ventilator, Low Profile, Square Top, Type B, 50 sq-in Net Free Area, 2-1/2 in Flange Width, Polypropylene, Gray, 4-1/2 in Overall Length, 16-3/4 in Overall Width, 17-1/2 in Overall Depth, Standards: CSA Certified, TDI Approved, Cold Impact Resistant to -40 Deg

Duraflo Roof Ventilator, Low Profile, Square Top, Type B, 50 sq-in Net Free Area, 2-1/2 in Flange Width, Polypropylene, Black, 4-1/2 in Overall Length, 16-3/4 in Overall Width, 17-1/2 in Overall Depth, Standards: CSA Certified, TDI Approved, Cold Impact Resistant to -40 Deg

Duraflo Roof Ventilator, Low Profile, Square Top, Type B, 50 sq-in Net Free Area, 2-1/2 in Flange Width, Polypropylene, Weatherwood, 4-1/2 in Overall Length, 16-3/4 in Overall Width, 17-1/2 in Overall Depth, Standards: CSA Certified, TDI Approved, Cold Impact Resistant to -40 Deg

Duraflo Roof Ventilator, Low Profile, Square Top, Type B, 50 sq-in Net Free Area, 2-1/2 in Flange Width, Polypropylene, Brown, 4-1/2 in Overall Length, 16-3/4 in Overall Width, 17-1/2 in Overall Depth, Standards: CSA Certified, TDI Approved, Cold Impact Resistant to -40 Deg

Duraflo Roof Ventilator, Low Profile, Slant, Type B, 61 sq-in Net Free Area, 1-1/4 in Flange Width, Polypropylene, Black, 4 in Overall Length, 17-1/4 in Overall Width, 18-1/4 in Overall Depth, Standards: CSA Certified, TDI Approved, Cold Impact Resistant to -40 Deg, For Steep Pitched Roofs Up To 12/12

Duraflo Roof Ventilator, Low Profile, Slant, Type B, 61 sq-in Net Free Area, 1-1/4 in Flange Width, Polypropylene, Brown, 4 in Overall Length, 17-1/4 in Overall Width, 18-1/4 in Overall Depth, Standards: CSA Certified, TDI Approved, Cold Impact Resistant to -40 Deg, For Steep Pitched Roofs Up To 12/12

Duraflo Roof Ventilator, Series: WeatherPRO PRO50, 50 sq-in Net Free Area, High-Grade Polypropylene, Brown, 4-1/2 in Overall Length, 18-1/2 in Overall Width, 18-1/2 in Overall Depth, Standards: CSA Certified, TDI Approved, Miami Dade County Approved, UV and Cold Impact Resistant to -40 Deg, For 2/12 - 14/12 Roof Pitches

Duraflo Roof Ventilator, Series: WeatherPRO PRO50, 50 sq-in Net Free Area, High-Grade Polypropylene, Black, 4-1/2 in Overall Length, 18-1/2 in Overall Width, 18-1/2 in Overall Depth, Standards: CSA Certified, TDI Approved, Miami Dade County Approved, UV and Cold Impact Resistant to -40 Deg, For 2/12 - 14/12 Roof Pitches

Duraflo Roof Ventilator, Series: WeatherPRO PRO50, 50 sq-in Net Free Area, High-Grade Polypropylene, Gray, 4-1/2 in Overall Length, 18-1/2 in Overall Width, 18-1/2 in Overall Depth, Standards: CSA Certified, TDI Approved, Miami Dade County Approved, UV and Cold Impact Resistant to -40 Deg, For 2/12 - 14/12 Roof Pitches

Duraflo Roof Ventilator, Low Profile, Square Top, Type B, 75 sq-in Net Free Area, 2-1/2 in Flange Width, Polypropylene, Brown, 5 in Overall Length, 19-1/2 in Overall Width, 20-1/2 in Overall Depth, Standards: CSA Certified, TDI Approved, Cold Impact Resistant to -40 Deg

LL Buildsite Weather Cap, Steel, Galvanized, Fits 12 in Diameter Turbine Base

GAF Master Flow Turbine Head, External Braced, Deluxe, Steel, Galvanized, Fits Most Brands of Turbine Bases

GAF Master Flow Rotary Turbine Ventilator, Internal Braced, 12 in Vent Hole, Aluminum, Mill

GAF Master Flow Rotary Turbine Ventilator, Internal Braced, 12 in Vent Hole, Steel, Galvanized, Black

GAF Master Flow Rotary Turbine Ventilator, Internal Braced, 12 in Vent Hole, Steel, Galvanized, Weathered Wood

GAF Master Flow Rotary Turbine Ventilator, Internal Braced, 12 in Vent Hole, Steel, Mill Galvanized

Canplas, Duraflo Roof Vent Turbine, Series: Weatherpro Turbo, Replacement, Retrofit , Type B, Polypropylene, Black, 18-1/4 in Length x 12-1/4 in Width x 10.19 in Height, 117 sq-in Net Free Area

Canplas, Duraflo Roof Vent Turbine, Series: Weatherpro Turbo, Replacement, Retrofit , Type B, Polypropylene, Gray, 17-1/2 in Length x 12 in Width x 10 in Height, 117 sq-in Net Free Area

GAF Master Flow Rotary Turbine Ventilator, Internal Braced, 14 in Vent Hole, Aluminum, Mill

GAF Master Flow Rotary Turbine Ventilator, Internal Braced, 14 in Vent Hole, Aluminum, Weathered Wood

GAF Master Flow Rotary Turbine Ventilator, External Braced, 12 in Vent Hole, Steel, Mill Galvanized

Canplas, Duraflo Roof Vent Turbine, Series: Weatherpro Turbo, Replacement, Retrofit , Type B, Polypropylene, Brown, 17-1/2 in Length x 12 in Width x 10 in Height, 117 sq-in Net Free Area

GAF Master Flow Rotary Turbine Ventilator, Internal Braced, 14 in Vent Hole, Aluminum, Black

Whirlybird Turbine Ventilator, Rigid Spider, 110 mph Air, 14 in Vent Hole, 22 X 22 in Base, Aluminum, Mill, 20 in Overall Length, TDI, Miami Dade County Approved, 12/12 Roof Pitch, 302 Stainless Steel Ball, For Residential Use Only

Whirlybird Turbine Ventilator, Rigid Spider, 110 mph Air, 14 in Vent Hole, 22 X 22 in Base, Aluminum, Black, 20 in Overall Length, TDI, Miami Dade County Approved, 12/12 Roof Pitch, 302 Stainless Steel Ball, For Residential Use Only

Whirlybird Turbine Ventilator, Rigid Spider, 110 mph Air, 12 in Vent Hole, 20 X 20 in Base, Aluminum, 17-1/4 in Overall Length, TDI, Miami Dade County Approved, 12/12 Roof Pitch, 302 Stainless Steel Ball, For Residential Use Only

GAF Master Flow Roof Louver, Slant Back, Series: IR65, 65 sq-in Net Free Area, 11-3/4 X 10-3/4 in Vent Hole, High Impact Resin, Gray, 5-7/8 in Overall Length, CSA Certified, 20-1/4 X 18 in Flashing

GAF Master Flow Roof Louver, Slant Back, Series: IR65, 65 sq-in Net Free Area, 11-3/4 X 10-3/4 in Vent Hole, High Impact Resin, Black, 5-7/8 in Overall Length, CSA Certified, 20-1/4 X 18 in Flashing

GAF Master Flow Roof Louver, Slant Back, Series: IR65, 65 sq-in Net Free Area, 11-3/4 X 10-3/4 in Vent Hole, High Impact Resin, Brown, 5-7/8 in Overall Length, CSA Certified, 20-1/4 X 18 in Flashing