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The SHARKBITE 25828Z is a 1/2-inch PEX test plug used to temporarily cap and pressure-test PEX tubing systems during rough-in and inspection. The plug seats into 1/2-inch PEX pipe and holds pressure so plumbers can verify system integrity before closing walls or completing final connections. At 0.088 pounds, it is lightweight and easy to handle on the job. This is a single-unit fitting sold individually, making it practical for targeted use on any section of a PEX distribution system.
This test plug is used in residential and light commercial plumbing applications where PEX tubing is the primary water distribution pipe. Plumbers install it during rough-in stages to isolate and test individual lines or zones. It is compatible with standard 1/2-inch PEX tubing and is suited for use in potable water systems where a temporary cap is needed before final fixtures are connected.
Designed as an OEM-style fitting for use with standard 1/2-inch PEX tubing in residential and light commercial plumbing distribution systems.
Installation should be performed by a licensed plumber in accordance with local plumbing codes and IPC requirements. Shut off the water supply and depressurize the line before installing or removing the test plug. Remove the plug after testing is complete and before system commissioning. Do not use this plug as a permanent end cap on any pressurized system.
We pulled together the parts most installs need for this unit, plus a few add-ons worth a look. Check what you need — nothing here blocks checkout.
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