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The CAPLUGS 14212 is a mechanical pipe plug designed to seal open-ended pipe terminations in plumbing, HVAC, and general piping systems. This plug fits 3/8 inch pipe ends and provides a secure, removable closure during installation, pressure testing, system commissioning, or storage. Plumbers, pipefitters, and HVAC technicians reach for this type of fitting when they need to cap off a line temporarily or permanently until the next stage of work. It is a compact, purpose-built fitting that keeps debris, moisture, and contaminants out of open pipe ends on the job site or in storage.
This plug is suited for residential and light commercial plumbing and piping applications. It is used in situations where a 3/8 inch pipe end must be closed off, including supply line stubs, branch line terminations, and test setups. The package contains 50 plugs, making it practical for contractors running multiple rough-in installations or maintaining a shop stock of common pipe closures. The low individual unit weight keeps the package manageable on the job site.
Designed as an OEM-style mechanical plug for 3/8 inch pipe ends in standard plumbing and piping installations.
Installation is performed by licensed plumbers or qualified pipefitters following applicable IPC and local plumbing codes. Shut off and depressurize the piping system completely before inserting or removing any pipe plug. Verify that the plug is fully seated before pressurizing the system for testing. Do not exceed the pressure rating of the plug or the connected piping assembly.
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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