
8 Inch Mixed Flow Inline Duct Fan Ventilation Fan with Double Controller. CE Certified Quality: Passed EU CE certification with strict QC system in every process. 1-Year Free Warranty: Free replacement and return freight coverage for quality issues within one year. OEM/ODM Customization: Supports full customization from samples, designs, or prototypes. Quiet Operation: Features very quiet noise levels with good air performance. Long Service Life: Expected lifespan of 3-5 years, potentially lasting 8-10 years. Fast Sample Delivery: Normal samples ready within 48 hours; customized samples in 2-3 weeks. Online After-Sales Support: Provides online support for customer assistance and inquiries. AC Power Supply: Operates on 220V AC current with insulation class F.