Ventilation
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16 in 19"H-W 5.75"L Aluminum Backdraft Damper, 16-1-2 in x 16-1-2 in, Aluminum 4C557
Dayton
MSRP: $95.30$88.0419 In.H-W 5.75 In.L Aluminum Backdraft Damper, Damper Application Backdraft, For Nominal Duct Diameter Not Applicable, Frame Material Aluminum, Number of Panels 1, Maximum Air Velocity 2500 fpm, Overall Height 19 in, Rough Opening Diameter 16 1/2 in,...MSRP: $95.30$88.04Qty in Cart: 0Quantity:Price:MSRP: $95.30$88.04Subtotal: -
16 in 19"H-W 6"L Aluminum Gable Shutter Damper, 17 in x 17 in, Aluminum 4YN20
Dayton
MSRP: $122.93$113.5619 In.H-W 6 In.L Aluminum Gable Shutter Damper, For Nominal Duct Diameter Not Applicable, Frame Material Aluminum, Number of Panels 1, Maximum Air Velocity 2500 fpm, Overall Height 19 in, Rough Opening Diameter 16 1/2 in, Rough Opening Shape Square, Fits...MSRP: $122.93$113.56Qty in Cart: 0Quantity:Price:MSRP: $122.93$113.56Subtotal: -
16 in 19"H-W 6.5"L Extrd Alu Backdraft Dampr, 16-1-2 in x 16-1-2 in, Aluminum 4FZH4
Dayton
MSRP: $150.68$139.2019 In.H-W 6.5 In.L Extrd Alu Backdraft Dampr, Damper Application Backdraft, For Nominal Duct Diameter Not Applicable, Frame Material Aluminum, Number of Panels 1, Maximum Air Velocity 3250 fpm, Overall Height 19 in, Rough Opening Diameter 16 1/2 in,...MSRP: $150.68$139.20Qty in Cart: 0Quantity:Price:MSRP: $150.68$139.20Subtotal: -
18 in 21"H-W 5 1-4"L Aluminum Backdraft Damper, 18-1-2 in x 18-1-2 in, Aluminum 3HHN7
Dayton
MSRP: $113.64$104.9821 In.H-W 5 1/4 In.L Aluminum Backdraft Damper, Damper Application Backdraft, For Nominal Duct Diameter Not Applicable, Frame Material Aluminum, Number of Panels 1, Maximum Air Velocity 2500 fpm, Overall Height 21 in, Rough Opening Diameter 18 1/2 in,...MSRP: $113.64$104.98Qty in Cart: 0Quantity:Price:MSRP: $113.64$104.98Subtotal: -
18 in 21"H-W 5 1-4"L SS Backdraft Dampr, 18-1-2 in x 18-1-2 in, Stainless Steel 4FZJ6
Dayton
MSRP: $370.45$342.2321 In.H-W 5 1/4 In.L SS Backdraft Dampr, Damper Application Backdraft, For Nominal Duct Diameter Not Applicable, Frame Material Stainless Steel, Number of Panels 1, Maximum Air Velocity 2500 fpm, Overall Height 21 in, Rough Opening Diameter 18 1/2 in,...MSRP: $370.45$342.23Qty in Cart: 0Quantity:Price:MSRP: $370.45$342.23Subtotal: -
18 in 21"H-W 5.75"L Alu Wall Backdraft Dampr, 18-1-2 in x 18-1-2 in, Aluminum 1C744
Dayton
MSRP: $96.94$89.5521 In.H-W 5.75 In.L Alu Wall Backdraft Dampr, Damper Application Backdraft, For Nominal Duct Diameter Not Applicable, Frame Material Galvanized Steel, Number of Panels 1, Maximum Air Velocity 2500 fpm, Overall Height 21 in, Rough Opening Diameter 18 1/2...MSRP: $96.94$89.55Qty in Cart: 0Quantity:Price:MSRP: $96.94$89.55Subtotal: -
18 in 21"H-W 5.75"L Aluminum Backdraft Damper, 18-1-2 in x 18-1-2 in, Aluminum 4C558
Dayton
MSRP: $106.73$98.6021 In.H-W 5.75 In.L Aluminum Backdraft Damper, Damper Application Backdraft, For Nominal Duct Diameter Not Applicable, Frame Material Aluminum, Number of Panels 1, Maximum Air Velocity 2500 fpm, Overall Height 21 in, Rough Opening Diameter 18 1/2 in,...MSRP: $106.73$98.60Qty in Cart: 0Quantity:Price:MSRP: $106.73$98.60Subtotal: -
18 in 21"H-W 6.5"L Extrd Alu Backdraft Dampr, 18-1-2 in x 18-1-2 in, Aluminum 4FZH5
Dayton
MSRP: $163.24$150.8121 In.H-W 6.5 In.L Extrd Alu Backdraft Dampr, Damper Application Backdraft, For Nominal Duct Diameter Not Applicable, Frame Material Aluminum, Number of Panels 1, Maximum Air Velocity 3250 fpm, Overall Height 21 in, Rough Opening Diameter 18 1/2 in,...MSRP: $163.24$150.81Qty in Cart: 0Quantity:Price:MSRP: $163.24$150.81Subtotal: -
18 In. Automatic Metal Shutter for Gable Mount Power Attic Ventilators CX2121AM
Maxx Air
MSRP: $179.44$165.77Auto Gable Ventilator Shutter 21x4x21MSRP: $179.44$165.77Qty in Cart: 0Quantity:Price:MSRP: $179.44$165.77Subtotal: -
20 in 23"H-W 5 1-4"L SS Backdraft Dampr, 20-1-2 in x 20-1-2 in, Stainless Steel 4FZJ7
Dayton
MSRP: $398.08$367.7523 In.H-W 5 1/4 In.L SS Backdraft Dampr, Damper Application Backdraft, For Nominal Duct Diameter Not Applicable, Frame Material Stainless Steel, Number of Panels 1, Maximum Air Velocity 2500 fpm, Overall Height 23 in, Rough Opening Diameter 20 1/2 in,...MSRP: $398.08$367.75Qty in Cart: 0Quantity:Price:MSRP: $398.08$367.75Subtotal: -
20 in 23"H-W 5.75"L Alu Wall Backdraft Dampr, 20-1-2 in x 20-1-2 in, Aluminum 1C745
Dayton
MSRP: $103.72$95.8123 In.H-W 5.75 In.L Alu Wall Backdraft Dampr, Damper Application Backdraft, For Nominal Duct Diameter Not Applicable, Frame Material Galvanized Steel, Number of Panels 1, Maximum Air Velocity 2500 fpm, Overall Height 23 in, Rough Opening Diameter 20 1/2...MSRP: $103.72$95.81Qty in Cart: 0Quantity:Price:MSRP: $103.72$95.81Subtotal: -
20 in 23"H-W 5.75"L Aluminum Backdraft Damper, 20-1-2 in x 20-1-2 in, Aluminum 4C559
Dayton
MSRP: $113.64$104.9823 In.H-W 5.75 In.L Aluminum Backdraft Damper, Damper Application Backdraft, For Nominal Duct Diameter Not Applicable, Frame Material Aluminum, Number of Panels 1, Maximum Air Velocity 2500 fpm, Overall Height 23 in, Rough Opening Diameter 20 1/2 in,...MSRP: $113.64$104.98Qty in Cart: 0Quantity:Price:MSRP: $113.64$104.98Subtotal: