One Way Ventilation Shutter Ventilation Damper for Air Diffuser

One Way Ventilation Shutter Ventilation Damper for Air Diffuser. European Standard Compliance: Conforms to European standards for non-return dampers. High-Quality Materials: Frame made of 0.6mm GI sheet, blades of 0.3mm aluminum. Noise Reduction Design: Inner rubber seal ensures tightness and reduces noise. Automatic Pressure Control: Opens with overpressure, closes via spring when pressure drops. Multiple Size Options: Available in 7 standard sizes ranging from 100mm to 315mm. Flexible Customization: ODM service available with flexible customization options. 100% Quality Inspection: Every product undergoes visual and function inspection. Competitive Pricing: High quality products at the most competitive market prices.