Simple Non-Return Valve for Waste Pipes

• Simple non-return valve designed for waste pipe systems. • Prevents backflow of wastewater from outside into the building. • Typically made from durable PVC or ABS plastic. • Available in various standard pipe sizes (e.g., 4-inch, 6-inch). • Easy to install in existing drainage lines. • Essential for preventing foul odors and contamination. • Suitable for residential and commercial drainage applications.