Description
Description
The P657 Royal 4" x 4" white reducer coupling is a high-quality PVC fitting designed to connect SDR 35 sewer pipe to Schedule 40 DWV pipe in non-pressure drainage applications. Featuring solvent weld hubs on both ends, it ensures a secure, watertight seal and is injection molded from virgin PVC for durability and dimensional accuracy. Certified to meet ASTM and CSA standards, this coupling is ideal for gravity-flow sewer systems in residential and commercial settings. Its compact design and white finish make it a reliable and visually clean choice for underground installations.
Features
- Model: P657
- Brand: Royal
- Size: 4" x 4"
- Color: White
- Material: PVC
- Connection type: Solvent weld hub x hub
- Application: Connects SDR 35 sewer pipe to Schedule 40 DWV pipe
- Use: Non-pressure drainage systems
- Construction: Injection molded from virgin PVC
- Certifications: ASTM D2665, F1866, F2135; NSF and CSA B181.2
- Length: Approximately 3.68 inches
- Suitable for residential and commercial gravity-flow sewer systems
- Not intended for pressurized applications
