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This 4 inch PVC Hub x Hub Backwater Valve provides unrestricted flow and a threaded access that seals hand tight and allows for easy maintenance and inspection. Used to prevent backup in sewer lines. Hub x hub connection type.
- The unique flapper creates a tighter seal than other backwater valves
- Used to prevent backup in sewer lines
- For gravity flow applications only
- Valves can be adapted for standard, shallow-depth or deep-bury installations
- Structurally rugged and molded from engineered resins to stand up to job site abuse
