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The Approved Vendor P657 is a 4-inch DWV to Sewer Adapter designed for effective installation in sewer systems. This fitting allows for a smooth transition from DWV pipes to sewer pipes, using solvent weld technology for a robust connection.
This adapter adheres to municipal and military standards, making it a reliable choice for professional plumbers and contractors. It simplifies sewer system installations and integrates seamlessly with backwater valves.
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