| - | Features |
|---|---|
| #1 | The unique flapper creates a tighter seal than other backwater valves |
| #2 | Used to prevent backup in sewer lines |
| #3 | For gravity flow applications only |
| #4 | Valves can be adapted for standard, shallow-depth or deep-bury installations |
| #5 | Structurally rugged and molded from engineered resins to stand up to job site abuse |