The Pipe Control Valve Ventilation Duct Valve is built to last. Made from PVC materials, it exhibits excellent wear resistance, ensuring long-term stable operation. This durable and reliable ventilation duct valve can withstand the harsh conditions of various ventilation systems, making it a dependable choice for industrial plants, commercial buildings, hospitals, and more. Features -Color:White -Material:PVC -Size:20.00X17.00X17.00cm/7.86X6.68X6.68in -Precise control of airflow is achieved through the use of a manual switch wind valve design. -The practical valve design allows for easy installation. Convenient to use. -The use of PVC materials ensures long-term stable operation. Can be used for a long time. -This valve can be applied in various settings such as industrial plants, commercial buildings, and hospitals. -With no need for additional power support, this ventilation duct valve provides a convenient solution for controlling the in your ventilation system. Package list: 1 x Regulating Valve