Features: Eliminate backdraft and maintain a Freshes kitchen environment with our high efficiency Kitchen Duct Check Valves, a must have for every Homes. Constructed from heat resistant ABS, this check Valves ensures durability and reliability even in the most demanding kitchen conditions. Suitable for homeowners seeking to enhances their kitchen's air quality and restaurant owners aiming to control Smokes spread effectively. Perfectly suited for residential kitchen exhaust systems and commercial kitchens, this Valves is essential component of any culinary space Renovations. Experience Simple installation with our user friendly design, making it a practical addition to your kitchen's ventilation system, ensuring clean air without the hassle. Specifications: Material: ABS Size: about 17x21cm/6.69x8.26inch Type: 2 for option Package Includes: 1xExhaust Check Valves note: Please allow 1 to 3cm error due to manual measurement, please make sure you do not mind before you bid, Due to the difference between different monitors, the picture may not reflect the actual color of the item.