### Product Overview
This duct-type backdraft damper is specially made for ventilation fan systems, crafted from high-grade durable ABS material. It effectively blocks reverse airflow and unpleasant odor backflow to keep your bathroom air fresh and clean at all times, and fits universally for 75mm and 110mm PVC duct pipes, ideal for home ventilation use.
### Key Features
✅ Anti-Backflow Design: As a professional check valve, it only allows air to flow in , completely stopping reverse flow to protect your ventilation equipment and maintain stable system operation, which is essential for all duct ventilation setups.
✅ Superior Sealing Performance: Its tight sealing structure eliminates leakage issues greatly, cutting down unnecessary maintenance costs for your ventilation system in the long run.
✅ Easy to Install & Use: Simple structure with no complex operation required, you can install it at any proper position of your ventilation system effortlessly in minutes.
✅ Reliable Quality: Every product goes through strict professional testing before delivery, with moderate size and light weight for hassle-free installation and operation.
✅ Responsive After-sales Support: If you have any questions about the product after receiving it, just contact us via email at any time, we will solve your problem immediately to make sure you have a satisfying shopping experience.
### Specifications
Type: Duct Backdraft Damper / Ventilation Check Valve
Material: Premium ABS
Size: As shown in product images
Color: As shown in product images
Applicable Scenarios: Bathroom exhaust ventilation systems, residential indoor duct ventilation projects
Package Included: 1 x Backdraft Damper
### Notes
1. The product images are for reference only, please confirm the size details from the product description before purchasing.
2. Please allow 1-3mm measurement error due to manual measurement, thanks for your understanding.
3. The actual color of the product may slightly differ from the images due to different monitor display settings.
The merchant warrants that their products comply with all applicable laws, and are offered only if they comply with Joom's policies and EU Product Safety and Compliance laws.
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