4 Inch PVC Backwater Valve With Quick Action Flapper Elastomeric Seal And Threaded Access Cap With Neoprene Seal For Basement Flood Prevention And Street Sewer Backflow Protection

Single 4-Inch PVC Backwater Valve with Quick-Action Flapper
✔️ 4 in. PVC backwater valve with elastomeric seal and neoprene cap for basement protection

The 4 Inch PVC Backwater Valve protects basements and low-lying areas from sewer backflow. It is designed for use in basements, crawl spaces, and exterior drainage paths to keep homes safe from street sewer surges.

✅ Size: 4 in. (101.6 mm) PVC backwater valve
✅ Elastomeric seal inside quick-action flapper for a tight water seal
✅ Threaded access cap with neoprene seal for positive sealing (hand-tighten)
✅ DWV hub-compatible; adaptable for sewer and drain piping

💡 What is a backwater valve used for in residential plumbing?

Backed by practical, hands-on use, it helps prevent sewer backups into living spaces. Handy for basements and flood-prone properties.

• Protects basements and low-lying spaces from sewage backups
• Handy for preventing flood-related damage in heavy rain areas
• Offers a dependable elastomeric-sealed check that closes tight during backflow
• Compatible with standard DWV piping and adaptable to sewer lines