General description Made of high-quality PVC, this check valve is reliable and durable. It is designed to prevent backflow of medium into the pipe and can be conveniently used in both horizontal and vertical installations. The valve is easy to maintain as it contains no internal metal parts, making it suitable for various applications. Technical specifications Material: High-quality PVC Connection type: Double connection for metric pressure pipes Diameter: DN25 (Φ32 mm) Usage This check valve is widely used in applications such as sump pumps, filter boats, koi ponds, and basements. Other information Package Content: 1 flapper swivel with backflow preventer