- Catalog
- Find A Branch
- KeepStock
- Help
- 1-800-GRAINGER
Sign In
Sign In to access your account information.
Sign In Register for Grainger.comOrder Lookup
Track and check the status of an order.
Order LookupAll Products
Unrelated Links
Product Categories
- All Product Categories
- Abrasives
- Adhesives, Sealants and Tape
- Cleaning and Janitorial
- Electrical
- Electronics & Batteries
- Fasteners
- Fleet & Vehicle Maintenance
- Furnishings, Appliances & Hospitality
- HVAC and Refrigeration
- Hardware
- Hydraulics
- Lab Supplies
- Lighting
- Lubrication
- Machining
- Material Handling
- Motors
- Office Supplies
- Outdoor Equipment
- Packaging & Shipping
- Paints, Equipment and Supplies
- Pipe, Hose, Tube & Fittings
- Plumbing
- Pneumatics
- Power Transmission
- Pumps
- Raw Materials
- Reference and Learning Supplies
- Safety
- Security
- Test Instruments
- Tools
- Welding
Sign In
Sign In to access your account information.
Sign In Register for Grainger.comOrder Lookup
Track and check the status of an order.
Order Lookup
Backdraft Dampers
Backdraft dampers, also called gravity dampers, keep air flowing in one direction through an HVAC duct. These dampers open when the ventilation system is running and close dynamically to prevent the backflow of air or materials.
Wall-Mount Backdraft Dampers
Wall-mount backdraft dampers, also called wall shutters, install vertically onto the wall vents of an HVAC system and prevent air from flowing backward. They feature spring-loaded blades that open when the system is running and close when it is not to keep the conditioned air in the occupied space.
Galvanized Steel Frame with Aluminum Blade
Rear Flange – 1-1/2 in Width
| Loading... | |||||
Aluminum Frame with Aluminum Blade
Rear Flange – 1-1/2 in Width
| Loading... | |||||
Front Flange – 1-1/2 in Width
| Loading... | |||||
Stainless Steel Frame with Stainless Steel Blade
Rear Flange – 1-1/2 in Width
| Loading... | |||||
Fiberglass Frame with Fiberglass Blade
Rear Flange – 1-1/2 in Width
| Loading... | |||||
Universal-Mount Backdraft Dampers
Universal-mount dampers install onto vertical or horizontal vents and ensure that air flows in the correct direction. They feature spring-loaded blades that open when the system is running and close when it is not to keep the conditioned air in the occupied space.
Galvanized Steel Frame with Aluminum Blade
No Flange
| Loading... | |||||
Aluminum Frame with Aluminum Blade
Front Flange – 1-3/8 in Width
| Loading... | |||||
Round Backdraft Dampers
Round dampers install into round duct branches and ensure that the air flows in the desired direction. They can be mounted either vertically or horizontally.
Galvanized Steel Frame with Aluminum Blade
| Loading... | |||
Steel Frame with Galvanized Steel Blade
| Loading... | |||