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The IPS 83688 / 10 CASE is a 3-inch flush repair plug from the Test-Tite line, designed to temporarily or permanently seal pipe openings during pressure testing and repair work on drain, waste, and vent systems. Constructed from plastic and rubber, the plug seats flush against the pipe end or fitting, providing a secure seal without protruding into the flow path. Plumbers and pipefitters rely on this type of plug when testing DWV systems for leaks prior to final inspection or when isolating a section of pipe during repair.
This flush repair plug is suited for residential and light commercial plumbing applications where a 3-inch pipe opening needs to be sealed. It is commonly used during rough-in inspections, pressure tests, and repair scenarios on PVC, ABS, or cast iron drain lines. The case quantity makes it a practical choice for contractors who regularly perform pressure testing across multiple job sites.
Designed as an OEM-style replacement and test fitting for 3-inch drain, waste, and vent pipe systems in residential and commercial plumbing installations.
Installation is typically performed by a licensed plumber during DWV system testing or repair. Before installing the plug, shut off any connected water supply and relieve pressure in the line. Follow local plumbing codes, including applicable IPC requirements, for pressure test duration and allowable test pressure. Do not exceed the pressure rating of the plug or the connected piping system.
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