The expanded line of Injection Molded PVC 40 DWV fittings include sizes that range from 4" to 12". The company also offers fabricated DWV fittings though 24". Also new to the SCH 40 DWV line are 4" and 6" Injection Molded Backwater Valves. Backwater Valves are designed to ensure one-way flow in storm and sanitary sewer.
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