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4 Inch Backdraft Damper, 1 Way Air Flow Stopper ABS Duct Connector Accessory Ducting Pipe Non Return Valve Backdraft Damper 6in Draft Blocker Ventilation Duct Check Valve（2PCS）
4 Inch Backdraft Damper, 1 Way Air Flow Stopper ABS Duct Connector Accessory Ducting Pipe Non Return Valve Backdraft Damper 6in Draft Blocker Ventilation Duct Check Valve（2PCS） 4 Inch Backdraft Damper, 1 Way Air Flow Stopper ABS Duct Connector Accessory Ducting Pipe Non Return Valve Backdraft Damper 6in Draft Blocker Ventilation Duct Check Valve（2PCS） 4 Inch Backdraft Damper, 1 Way Air Flow Stopper ABS Duct Connector Accessory Ducting Pipe Non Return Valve Backdraft Damper 6in Draft Blocker Ventilation Duct Check Valve（2PCS） 4 Inch Backdraft Damper, 1 Way Air Flow Stopper ABS Duct Connector Accessory Ducting Pipe Non Return Valve Backdraft Damper 6in Draft Blocker Ventilation Duct Check Valve（2PCS） 4 Inch Backdraft Damper, 1 Way Air Flow Stopper ABS Duct Connector Accessory Ducting Pipe Non Return Valve Backdraft Damper 6in Draft Blocker Ventilation Duct Check Valve（2PCS） 4 Inch Backdraft Damper, 1 Way Air Flow Stopper ABS Duct Connector Accessory Ducting Pipe Non Return Valve Backdraft Damper 6in Draft Blocker Ventilation Duct Check Valve（2PCS） 4 Inch Backdraft Damper, 1 Way Air Flow Stopper ABS Duct Connector Accessory Ducting Pipe Non Return Valve Backdraft Damper 6in Draft Blocker Ventilation Duct Check Valve（2PCS） 4 Inch Backdraft Damper, 1 Way Air Flow Stopper ABS Duct Connector Accessory Ducting Pipe Non Return Valve Backdraft Damper 6in Draft Blocker Ventilation Duct Check Valve（2PCS）

4 Inch Backdraft Damper, 1 Way Air Flow Stopper ABS Duct Connector Accessory Ducting Pipe Non Return Valve Backdraft Damper 6in Draft Blocker Ventilation Duct Check Valve（2PCS）

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Product details

Management number 213616224 Release Date 2026/04/12 List Price €8.80 Model Number 213616224
Category
  1. Tools & Home Improvement
  2. Building Supplies
  3. HVAC
  4. Ducting
  • 1. One-Way Airflow Backdraft Damper Designed with a built-in backflow damper, this 4 inch backdraft damper allows air to flow in one direction only, effectively preventing reverse airflow and maintaining stable ventilation performance.
  • 2. Blocks Cold Air, Wind & Odors The one-way draft blocker helps stop cold air, outside wind, smoke, and unpleasant odors from entering the ventilation duct, improving indoor air quality and comfort.
  • 3. Durable ABS Construction Made from premium ABS material with a sturdy structure, this duct draft stopper offers excellent durability, water resistance, and temperature stability for long-term indoor or outdoor use.
  • 4. Fits Standard 4 Inch Ducting Designed for standard 4 inch round ventilation ducts, ideal for HVAC exhaust systems, bathroom exhaust fans, dryer vents, range hoods, kitchens, garages, and home vent systems.
  • 5. Easy & Fast Installation Lightweight and compact design allows quick inline installation within minutes. Simply insert into the duct pipe and secure with duct tape or clamps (not included).
Size 4 Inch
Brand Name Cuchiilo
Unit Count 2.0 Count
Valve Type Check Valve
Manufacturer Cuchiilo
Material Type Acrylonitrile Butadiene Styrene (ABS)
Exterior Finish ABS
Number of Ports 2
Number of Pieces 2
Specification Met RoHS
Inlet Connection Size 4 Inches
Inlet Connection Type Socket Weld
Outlet Connection Size 4 Inches
Outlet Connection Type Slip

4 Inch Backdraft Damper, 1 Way Air Flow Stopper ABS Duct Connector Accessory Ducting Pipe Non Return Valve Backdraft Damper 6in Draft Blocker Ventilation Duct Check Valve（2PCS）

4 Inch Backdraft Damper, 1 Way Air Flow Stopper ABS Duct Connector Accessory Ducting Pipe Non Return Valve Backdraft Damper 6in Draft Blocker Ventilation Duct Check Valve（2PCS）

4 Inch Backdraft Damper, 1 Way Air Flow Stopper ABS Duct Connector Accessory Ducting Pipe Non Return Valve Backdraft Damper 6in Draft Blocker Ventilation Duct Check Valve（2PCS）

4 Inch Backdraft Damper, 1 Way Air Flow Stopper ABS Duct Connector Accessory Ducting Pipe Non Return Valve Backdraft Damper 6in Draft Blocker Ventilation Duct Check Valve（2PCS）

4 Inch Backdraft Damper, 1 Way Air Flow Stopper ABS Duct Connector Accessory Ducting Pipe Non Return Valve Backdraft Damper 6in Draft Blocker Ventilation Duct Check Valve（2PCS）

4 Inch Backdraft Damper, 1 Way Air Flow Stopper ABS Duct Connector Accessory Ducting Pipe Non Return Valve Backdraft Damper 6in Draft Blocker Ventilation Duct Check Valve（2PCS）

4 Inch Backdraft Damper, 1 Way Air Flow Stopper ABS Duct Connector Accessory Ducting Pipe Non Return Valve Backdraft Damper 6in Draft Blocker Ventilation Duct Check Valve（2PCS）

4 Inch Backdraft Damper, 1 Way Air Flow Stopper ABS Duct Connector Accessory Ducting Pipe Non Return Valve Backdraft Damper 6in Draft Blocker Ventilation Duct Check Valve（2PCS）

4 Inch Backdraft Damper, 1 Way Air Flow Stopper ABS Duct Connector Accessory Ducting Pipe Non Return Valve Backdraft Damper 6in Draft Blocker Ventilation Duct Check Valve（2PCS）

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