Quiet Operation: Enjoy peaceful, silent performance thanks to the spring-loaded flapper design in this sump pump check valve. It effectively reduces water hammer noise commonly caused by standard check valves, making it ideal for quiet environments such as basements or residential areas. Smart Visibility: The transparent body allows clear visual monitoring of water flow, helping you ensure proper system operation. Easily observe that water is moving smoothly and that there are no blockages in the line. Precise Installation: Designed to fit 1-1/2 inch schedule 40 pipe, this check valve integrates seamlessly into existing plumbing systems. Its compact size requires only 5-1/8 inches of space, allowing for easy and secure installation with minimal effort. Backflow Prevention: Provides reliable protection against backflow by preventing discharged water from returning to the sump basin. This helps avoid unnecessary cycling of the pump, improving efficiency and extending the life of your sump pump system. Durable Construction: Built with 304 stainless steel clamps and corrosion-resistant rubber couplings for long-lasting, leak-free performance. The robust materials ensure dependable operation in demanding conditions. Color: Silver & Black Material: Plastic Package Contents: 1 x CV-150 Sump Pump Check Valve Note: Light reflection and display settings may cause slight color variations between the image and the actual item. Measurement may vary by +/- 1-3 cm.