Rear-flanged wall exhaust shutter with galvanized frame and aluminum blades

18-Inch Rear-Flanged Wall Exhaust Shutter with Aluminum Blades

SKU:
WBB2224464
Model/MPN:
556-STD 18
Our Price:
$78.94
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Product Specifications:
Country of Origin: US
Material: Aluminum/Galvanized Steel
Product Depth: 21"
Product Height: 21"
Product Type: Louvers & Vents
Product Width: 2.5"
Quantity Included: 1
Manufacturer Part Number: 556-STD 18
Length: 2-1/2 in
Width: 21 in
Height: 21 in
Inside Width: 18 in
Inside Height: 18 in
Weight: 8 lbs
Free Area: 1.82 ft³
Inside Dimensions: 2-1/2 (Length) in
Max Pressure In W.G.: 1 in
Max Velocity (per Minute): 2500 ft/min
Rough Opening: 18.5 x 18.5 in
Brand: Air Conditioning Products
Finish: Mill Finish
Flange Style: Rear Flange
For Use With: 18" Exhaust Fans
Manufacturers Part Number: 556-STD 18
Mounting Location: Vertical
Number of Panels: 1
Type: Gravity
Warranty: 1 yr
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Free Shipping on Qualifying Orders Over $99
Product Specifications:
Country of Origin: US
Material: Aluminum/Galvanized Steel
Product Depth: 21"
Product Height: 21"
Product Type: Louvers & Vents
Product Width: 2.5"
Quantity Included: 1
Manufacturer Part Number: 556-STD 18
Length: 2-1/2 in
Width: 21 in
Height: 21 in
Inside Width: 18 in
Inside Height: 18 in
Weight: 8 lbs
Free Area: 1.82 ft³
Inside Dimensions: 2-1/2 (Length) in
Max Pressure In W.G.: 1 in
Max Velocity (per Minute): 2500 ft/min
Rough Opening: 18.5 x 18.5 in
Brand: Air Conditioning Products
Finish: Mill Finish
Flange Style: Rear Flange
For Use With: 18" Exhaust Fans
Manufacturers Part Number: 556-STD 18
Mounting Location: Vertical
Number of Panels: 1
Type: Gravity
Warranty: 1 yr

This rear-flanged wall exhaust shutter is designed for facility teams installing vertical exhaust ventilation. It works with an exhaust fan to open during operation and close when airflow stops, helping protect the wall opening from weather.

The shutter has a galvanized steel frame and mill-finish aluminum blades. Each blade includes a galvanized reinforcement strip for added strength and counterbalancing efficiency, plus a felt leading-edge seal for quieter closing. It is intended for vertical mounting with direct-drive or belt-driven exhaust fans. Overall dimensions are 21 inches wide, 2.5 inches deep, and 21 inches high.

Key Features:

  • Rear-Flanged Frame: Supports installation as a wall exhaust shutter.
  • Galvanized Steel Frame: Provides a frame suited for areas where corrosion may be a concern.
  • Reinforced Aluminum Blades: Galvanized strips add blade strength and support efficient counterbalancing.
  • Felt Blade Seals: Helps the blades close more quietly and provides improved weather protection.
  • Exhaust Fan Compatibility: Designed for use with direct-drive or belt-driven exhaust fans.

Choose this shutter for vertically mounted wall exhaust applications that require a rear-flanged design, aluminum blades, and automatic closing protection when the fan is not operating.

Country of Origin: US
Material: Aluminum/Galvanized Steel
Product Depth: 21"
Product Height: 21"
Product Type: Louvers & Vents
Product Width: 2.5"
Quantity Included: 1
Manufacturer Part Number: 556-STD 18
Length: 2-1/2 in
Width: 21 in
Height: 21 in
Inside Width: 18 in
Inside Height: 18 in
Weight: 8 lbs
Free Area: 1.82 ft³
Inside Dimensions: 2-1/2 (Length) in
Max Pressure In W.G.: 1 in
Max Velocity (per Minute): 2500 ft/min
Rough Opening: 18.5 x 18.5 in
Brand: Air Conditioning Products
Finish: Mill Finish
Flange Style: Rear Flange
For Use With: 18" Exhaust Fans
Manufacturers Part Number: 556-STD 18
Mounting Location: Vertical
Number of Panels: 1
Type: Gravity
Warranty: 1 yr
Width: 21.00 in
Height: 21.00 in
Depth: 2.50 in
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