Westlake S650040 – 4″ x 4″ PVC DWV to SDR35 Sewer Adapter Coupling – Hub x Hub
The Westlake S650040 is a 4″ x 4″ PVC adapter coupling designed to transition between standard DWV piping and SDR35 sewer piping. Its hub x hub configuration accommodates the different outside diameters of 4″ DWV pipe (4.50″) and 4″ SDR35 sewer pipe (4.22″), providing a solvent-weld connection for drainage, waste, vent, and sewer applications. Westlake also identifies this fitting as alternate part number P657.
Features
- 4″ x 4″ DWV to SDR35 sewer adapter coupling
- Designed to transition between 4″ DWV and 4″ SDR35 sewer pipe
- Hub x hub configuration
- Solvent-weld connections on both ends
- 4.50″ nominal pipe OD on DWV side
- 4.22″ nominal pipe OD on SDR35 sewer side
- Molded PVC construction
- White finish
- Designed for non-pressure DWV and sewer applications
- Meets applicable ASTM D2665, F1866 and CSA B181.2 requirements
- Alternate Part Number: P657
WFI1A17071
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