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- Available for 3" or 4" Sch. 40 DWV lines.
- Valves can be adapted for standard, shallow-depth or deep-bury installations
- Modular valve design allows for interchangeable accessories - less inventory
- Structurally rugged and molded from engineered resins to stand up to job site abuse
- The unique flapper creates a tighter seal than other backwater valves
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