Vent Systems 4'' Inch Backdraft Damper - Dryer Vent Backflow Shutter - ABS Plastic - One-Way Airflow Ducting Insert - Inline Fan Vent Deflector 4'' Inch
Product details
| Management number | 237344648 | Release Date | 2026/07/10 | List Price | $4.00 | Model Number | 237344648 | ||
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- FITS INSIDE 4 INCH DUCTS – Male fit duct pipe connector with diameter of 3.90" and ridged mounting neck is designed to fit pipes, vents and ducting systems on each side. Overall length - 2.44". Ducting connector for heating, cooling and exhaust air ventilation.
- HEAVY-DUTY ABS PLASTIC – This white backdraft damper is made from impact-resistant and temperature resistant (-4°F to +176°F) ABS plastic that resists cracking, heat, moisture, and vibration. Maintains structural integrity in continuous HVAC ducting systems for long-lasting reliability.
- ONE-WAY BACKDRAFT PROTECTION – Features a central internal flap (middle part) that automatically opens with airflow and closes tightly when air stops. Prevents cold air, odors, insects, and wind from entering through the duct – ensuring cleaner, safer airflow.
- QUICK & TOOL-FREE INSTALLATION – Push-fit connection installs in seconds. Sealing is recommended. For flexible connections, use hose clamps. For rigid connections, use mounting adhesive. MOUNTING HARDWARE NOT INCLUDED. The lightweight design of the 4 inch duct connector allows easy alignment and a secure fit even in tight or hard-to-reach spaces.
- VERSATILE HVAC APPLICATIONS – The backflow preventer / duct fitting connector is perfect for bathroom fans, kitchen exhaust, dryer vents, grow-tent setups, garage ventilation, inline fans, and general ducting projects. Improves system efficiency and ensures dependable airflow control. Suitable for metal pipe, plastic pipe or dryer vent hose connections.
| ASIN | B08PKPDQS2 |
|---|---|
| Size | 4'' Inch - w/Backdraft Damper |
| Color | White |
| Brand Name | Vent Systems |
| Unit Count | 1.0 Count |
| Thread Type | NPT |
| Manufacturer | Vent Systems |
| Model Number | 6f6d0160-6112-46e3-9e91-9568b562d558 |
| Material Type | Plastic |
| Connector Type | Slip |
| Item Dimensions | 4.06 x 4.06 x 2.44 inches |
| Number of Pieces | 1 |
| Included Components | Pipe Connector |
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