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The OATEY 238-702 is a 2-inch PVC knockout test cap designed for pressure and leak testing of drain, waste, and vent (DWV) pipe systems. The knockout center allows the cap to be installed before final system testing and then punched out for permanent service once the test is complete. This eliminates the need to remove the cap entirely after testing, saving time on rough-in inspections. Licensed plumbers and pipefitters use this fitting during new construction and remodel work to isolate pipe sections and verify system integrity before walls are closed.
This test cap is suited for residential and light commercial plumbing applications. It fits 2-inch PVC DWV pipe and is commonly used at cleanout openings, stub-outs, and branch terminations where a temporary seal is needed during pressure or air testing. The knockout design makes it a practical choice for inspections that require a sealed system before final rough-in approval.
Designed as an OEM-style replacement and standard fitting for 2-inch PVC DWV plumbing systems in residential and light commercial applications.
Installation is performed by licensed plumbers in accordance with local plumbing codes and the International Plumbing Code (IPC). Solvent-weld the cap to the pipe end using approved PVC primer and cement before conducting system pressure tests. Ensure the system is depressurized before knocking out the center plug for final service. Follow all local inspection requirements for DWV test pressure limits and hold times.
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